40400624424 has 32 divisors (see below), whose sum is σ = 105392934720. Its totient is φ = 12881358336.

The previous prime is 40400624417. The next prime is 40400624437. The reversal of 40400624424 is 42442600404.

It is a junction number, because it is equal to n+sod(n) for n = 40400624391 and 40400624400.

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 7 ways as a sum of consecutive naturals, for example, 36594217 + ... + 36595320.

It is an arithmetic number, because the mean of its divisors is an integer number (3293529210).

Almost surely, 2^40400624424 is an apocalyptic number.

It is an amenable number.

40400624424 is an abundant number, since it is smaller than the sum of its proper divisors (64992310296).

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

40400624424 is a wasteful number, since it uses less digits than its factorization.

40400624424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73189569 (or 73189565 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

The spelling of 40400624424 in words is "forty billion, four hundred million, six hundred twenty-four thousand, four hundred twenty-four".