16361730 has 128 divisors (see below), whose sum is σ = 54466560. Its totient is φ = 3395520.

The previous prime is 16361699. The next prime is 16361743. The reversal of 16361730 is 3716361.

16361730 is a `hidden beast` number, since 16 + 3 + 617 + 30 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16361694 and 16361703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20397 + ... + 21183.

It is an arithmetic number, because the mean of its divisors is an integer number (425520).

Almost surely, 2^16361730 is an apocalyptic number.

16361730 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 16361730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27233280).

16361730 is an abundant number, since it is smaller than the sum of its proper divisors (38104830).

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

16361730 is a wasteful number, since it uses less digits than its factorization.

16361730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 16361730 is about 4044.9635350643. The cubic root of 16361730 is about 253.8690398946.

The spelling of 16361730 in words is "sixteen million, three hundred sixty-one thousand, seven hundred thirty".