40115431600 has 60 divisors (see below), whose sum is σ = 100567665936. Its totient is φ = 15348509440.

The previous prime is 40115431597. The next prime is 40115431613. The reversal of 40115431600 is 613451104.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2170987 + ... + 2189386.

Almost surely, 2^40115431600 is an apocalyptic number.

40115431600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40115431600 is an abundant number, since it is smaller than the sum of its proper divisors (60452234336).

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

40115431600 is a wasteful number, since it uses less digits than its factorization.

40115431600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360414 (or 4360403 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 40115431600 its reverse (613451104), we get a palindrome (40728882704).

The spelling of 40115431600 in words is "forty billion, one hundred fifteen million, four hundred thirty-one thousand, six hundred".