40920041920 has 56 divisors (see below), whose sum is σ = 97464853584. Its totient is φ = 16363984896.

The previous prime is 40920041893. The next prime is 40920041927. The reversal of 40920041920 is 2914002904.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40920041927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1518484 + ... + 1545196.

It is an arithmetic number, because the mean of its divisors is an integer number (1740443814).

Almost surely, 2^40920041920 is an apocalyptic number.

40920041920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40920041920 is an abundant number, since it is smaller than the sum of its proper divisors (56544811664).

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

40920041920 is a wasteful number, since it uses less digits than its factorization.

40920041920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31517 (or 31507 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 40920041920 in words is "forty billion, nine hundred twenty million, forty-one thousand, nine hundred twenty".