13402038 has 24 divisors (see below), whose sum is σ = 29026728. Its totient is φ = 4123392.

The previous prime is 13402033. The next prime is 13402043. The reversal of 13402038 is 83020431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13402033) and next prime (13402043).

It is a super-2 number, since 2×13402038² = 359229245106888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5595 + ... + 7622.

It is an arithmetic number, because the mean of its divisors is an integer number (1209447).

Almost surely, 2^13402038 is an apocalyptic number.

13402038 is an abundant number, since it is smaller than the sum of its proper divisors (15624690).

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

13402038 is a wasteful number, since it uses less digits than its factorization.

13402038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13248 (or 13235 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 13402038 is about 3660.8794025480. The cubic root of 13402038 is about 237.5328146718.

Adding to 13402038 its reverse (83020431), we get a palindrome (96422469).

The spelling of 13402038 in words is "thirteen million, four hundred two thousand, thirty-eight".