40448734372 has 24 divisors (see below), whose sum is σ = 74959418520. Its totient is φ = 19032084480.

The previous prime is 40448734303. The next prime is 40448734379. The reversal of 40448734372 is 27343784404.

It can be written as a sum of positive squares in 4 ways, for example, as 646888356 + 39801846016 = 25434^2 + 199504^2 .

It is a super-2 number, since 2×40448734372² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40448734379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512704 + ... + 586312.

It is an arithmetic number, because the mean of its divisors is an integer number (3123309105).

Almost surely, 2^40448734372 is an apocalyptic number.

It is an amenable number.

40448734372 is a deficient number, since it is larger than the sum of its proper divisors (34510684148).

40448734372 is a wasteful number, since it uses less digits than its factorization.

40448734372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81711 (or 81709 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 46.

The spelling of 40448734372 in words is "forty billion, four hundred forty-eight million, seven hundred thirty-four thousand, three hundred seventy-two".