40043537600 has 84 divisors (see below), whose sum is σ = 107489643288. Its totient is φ = 14561280000.

The previous prime is 40043537591. The next prime is 40043537629. The reversal of 40043537600 is 673534004.

It is a super-2 number, since 2×40043537600² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 1120001 + ... + 1155200.

Almost surely, 2^40043537600 is an apocalyptic number.

40043537600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40043537600 is an abundant number, since it is smaller than the sum of its proper divisors (67446105688).

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

40043537600 is a wasteful number, since it uses less digits than its factorization.

40043537600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275234 (or 2275219 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 40043537600 in words is "forty billion, forty-three million, five hundred thirty-seven thousand, six hundred".