40457851420 has 48 divisors (see below), whose sum is σ = 97132674240. Its totient is φ = 13866430464.

The previous prime is 40457851417. The next prime is 40457851429. The reversal of 40457851420 is 2415875404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40457851429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365116 + ... + 462844.

It is an arithmetic number, because the mean of its divisors is an integer number (2023597380).

Almost surely, 2^40457851420 is an apocalyptic number.

It is an amenable number.

40457851420 is an abundant number, since it is smaller than the sum of its proper divisors (56674822820).

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

40457851420 is a wasteful number, since it uses less digits than its factorization.

40457851420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100702 (or 100700 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 40.

The spelling of 40457851420 in words is "forty billion, four hundred fifty-seven million, eight hundred fifty-one thousand, four hundred twenty".