13499420 has 48 divisors (see below), whose sum is σ = 31667328. Its totient is φ = 4791360.

The previous prime is 13499407. The next prime is 13499449. The reversal of 13499420 is 2499431.

It is a happy number.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8747 + ... + 10173.

It is an arithmetic number, because the mean of its divisors is an integer number (659736).

Almost surely, 2^13499420 is an apocalyptic number.

13499420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13499420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15833664).

13499420 is an abundant number, since it is smaller than the sum of its proper divisors (18167908).

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

13499420 is a wasteful number, since it uses less digits than its factorization.

13499420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 13499420 is about 3674.1556853242. The cubic root of 13499420 is about 238.1067477738.

The spelling of 13499420 in words is "thirteen million, four hundred ninety-nine thousand, four hundred twenty".