13401534 has 32 divisors (see below), whose sum is σ = 27489024. Its totient is φ = 4354560.

The previous prime is 13401523. The next prime is 13401539. The reversal of 13401534 is 43510431.

It is a super-2 number, since 2×13401534² = 359202227106312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13401534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69342 + ... + 69534.

It is an arithmetic number, because the mean of its divisors is an integer number (859032).

Almost surely, 2^13401534 is an apocalyptic number.

13401534 is an abundant number, since it is smaller than the sum of its proper divisors (14087490).

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

13401534 is a wasteful number, since it uses less digits than its factorization.

13401534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13401534 is about 3660.8105659813. The cubic root of 13401534 is about 237.5298370640.

Adding to 13401534 its reverse (43510431), we get a palindrome (56911965).

The spelling of 13401534 in words is "thirteen million, four hundred one thousand, five hundred thirty-four".