40240331020 has 24 divisors (see below), whose sum is σ = 85294463184. Its totient is φ = 15945700416.

The previous prime is 40240331017. The next prime is 40240331023. The reversal of 40240331020 is 2013304204.

It is an interprime number because it is at equal distance from previous prime (40240331017) and next prime (40240331023).

It is not an unprimeable number, because it can be changed into a prime (40240331023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9399807 + ... + 9404086.

It is an arithmetic number, because the mean of its divisors is an integer number (3553935966).

Almost surely, 2^40240331020 is an apocalyptic number.

It is an amenable number.

40240331020 is an abundant number, since it is smaller than the sum of its proper divisors (45054132164).

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

40240331020 is a wasteful number, since it uses less digits than its factorization.

40240331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18804009 (or 18804007 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 40240331020 its reverse (2013304204), we get a palindrome (42253635224).

The spelling of 40240331020 in words is "forty billion, two hundred forty million, three hundred thirty-one thousand, twenty".