13405234502 has 96 divisors (see below), whose sum is σ = 24757215840. Its totient is φ = 5405875200.

The previous prime is 13405234441. The next prime is 13405234511. The reversal of 13405234502 is 20543250431.

13405234502 = 7554² + 7555² + ... + 7781².

It is a happy number.

It is a super-2 number, since 2×13405234502² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24778352 + ... + 24778892.

It is an arithmetic number, because the mean of its divisors is an integer number (257887665).

Almost surely, 2^13405234502 is an apocalyptic number.

13405234502 is a deficient number, since it is larger than the sum of its proper divisors (11351981338).

13405234502 is a wasteful number, since it uses less digits than its factorization.

13405234502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 13405234502 its reverse (20543250431), we get a palindrome (33948484933).

The spelling of 13405234502 in words is "thirteen billion, four hundred five million, two hundred thirty-four thousand, five hundred two".