13390650 has 192 divisors, whose sum is σ = 45830400. Its totient is φ = 2799360.

The previous prime is 13390631. The next prime is 13390661. The reversal of 13390650 is 5609331.

13390650 = 18² + 19² + ... + 342².

13390650 is a `hidden beast` number, since 1 + 3 + 3 + 9 + 0 + 650 = 666.

13390650 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

13390650 is strictly pandigital in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 122796 + ... + 122904.

It is an arithmetic number, because the mean of its divisors is an integer number (238700).

Almost surely, 2^13390650 is an apocalyptic number.

13390650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13390650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22915200).

13390650 is an abundant number, since it is smaller than the sum of its proper divisors (32439750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13390650 is a wasteful number, since it uses less digits than its factorization.

13390650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 13390650 is about 3659.3237080094. The cubic root of 13390650 is about 237.4655166925.

Adding to 13390650 its reverse (5609331), we get a palindrome (18999981).

It can be divided in two parts, 133906 and 50, that added together give a square (133956 = 366²).

The spelling of 13390650 in words is "thirteen million, three hundred ninety thousand, six hundred fifty".