13398372 has 60 divisors (see below), whose sum is σ = 37732156. Its totient is φ = 4121280.

The previous prime is 13398323. The next prime is 13398379. The reversal of 13398372 is 27389331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1454436 + 11943936 = 1206^2 + 3456^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13398379) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 2622 + ... + 5802.

Almost surely, 2^13398372 is an apocalyptic number.

13398372 is a gapful number since it is divisible by the number (12) 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 13398372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18866078).

13398372 is an abundant number, since it is smaller than the sum of its proper divisors (24333784).

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

13398372 is a wasteful number, since it uses less digits than its factorization.

13398372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210 (or 3199 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 13398372 is about 3660.3786689358. The cubic root of 13398372 is about 237.5111544161.

The spelling of 13398372 in words is "thirteen million, three hundred ninety-eight thousand, three hundred seventy-two".