31424304400 has 60 divisors (see below), whose sum is σ = 75514488192. Its totient is φ = 12566792320.

The previous prime is 31424304341. The next prime is 31424304419. The reversal of 31424304400 is 440342413.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2739477 + ... + 2750923.

Almost surely, 2^31424304400 is an apocalyptic number.

It is an amenable number.

31424304400 is an abundant number, since it is smaller than the sum of its proper divisors (44090183792).

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

31424304400 is a wasteful number, since it uses less digits than its factorization.

31424304400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18328 (or 18317 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 31424304400 its reverse (440342413), we get a palindrome (31864646813).

The spelling of 31424304400 in words is "thirty-one billion, four hundred twenty-four million, three hundred four thousand, four hundred".