40245031684 has 24 divisors (see below), whose sum is σ = 82741534848. Its totient is φ = 16886027040.

The previous prime is 40245031681. The next prime is 40245031691. The reversal of 40245031684 is 48613054204.

It is not an unprimeable number, because it can be changed into a prime (40245031681) by changing a digit.

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, 35178652 + ... + 35179795.

It is an arithmetic number, because the mean of its divisors is an integer number (3447563952).

Almost surely, 2^40245031684 is an apocalyptic number.

40245031684 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40245031684 is an abundant number, since it is smaller than the sum of its proper divisors (42496503164).

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

40245031684 is a wasteful number, since it uses less digits than its factorization.

40245031684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70358475 (or 70358473 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 40245031684 its reverse (48613054204), we get a palindrome (88858085888).

The spelling of 40245031684 in words is "forty billion, two hundred forty-five million, thirty-one thousand, six hundred eighty-four".