40412032040 has 32 divisors (see below), whose sum is σ = 92172655080. Its totient is φ = 15943375872.

The previous prime is 40412032027. The next prime is 40412032061. The reversal of 40412032040 is 4023021404.

It can be written as a sum of positive squares in 4 ways, for example, as 38133497284 + 2278534756 = 195278^2 + 47734^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6916949 + ... + 6922788.

Almost surely, 2^40412032040 is an apocalyptic number.

40412032040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40412032040 is an abundant number, since it is smaller than the sum of its proper divisors (51760623040).

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

40412032040 is a wasteful number, since it uses less digits than its factorization.

40412032040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13839821 (or 13839817 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40412032040 its reverse (4023021404), we get a palindrome (44435053444).

The spelling of 40412032040 in words is "forty billion, four hundred twelve million, thirty-two thousand, forty".