40570457 has 4 divisors (see below), whose sum is σ = 41514000. Its totient is φ = 39626916.

The previous prime is 40570451. The next prime is 40570477. The reversal of 40570457 is 75407504.

40570457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40570457 - 2⁶ = 40570393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40570451) 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 3 ways as a sum of consecutive naturals, for example, 471707 + ... + 471792.

It is an arithmetic number, because the mean of its divisors is an integer number (10378500).

Almost surely, 2^40570457 is an apocalyptic number.

It is an amenable number.

40570457 is a deficient number, since it is larger than the sum of its proper divisors (943543).

40570457 is an equidigital number, since it uses as much as digits as its factorization.

40570457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943542.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 40570457 is about 6369.4942499385. The cubic root of 40570457 is about 343.6133009298.

The spelling of 40570457 in words is "forty million, five hundred seventy thousand, four hundred fifty-seven".