40146936040 has 32 divisors (see below), whose sum is σ = 90353236680. Its totient is φ = 16054751232.

The previous prime is 40146935911. The next prime is 40146936097. The reversal of 40146936040 is 4063964104.

It can be written as a sum of positive squares in 4 ways, for example, as 38371324996 + 1775611044 = 195886^2 + 42138^2 .

It is a super-2 number, since 2×40146936040² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38584 + ... + 285976.

Almost surely, 2^40146936040 is an apocalyptic number.

40146936040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40146936040 is an abundant number, since it is smaller than the sum of its proper divisors (50206300640).

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

40146936040 is a wasteful number, since it uses less digits than its factorization.

40146936040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251461 (or 251457 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 40146936040 in words is "forty billion, one hundred forty-six million, nine hundred thirty-six thousand, forty".