40370457 has 4 divisors (see below), whose sum is σ = 53827280. Its totient is φ = 26913636.

The previous prime is 40370443. The next prime is 40370467. The reversal of 40370457 is 75407304.

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 not a de Polignac number, because 40370457 - 2⁷ = 40370329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40370437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6728407 + ... + 6728412.

It is an arithmetic number, because the mean of its divisors is an integer number (13456820).

Almost surely, 2^40370457 is an apocalyptic number.

It is an amenable number.

40370457 is a deficient number, since it is larger than the sum of its proper divisors (13456823).

40370457 is a wasteful number, since it uses less digits than its factorization.

40370457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13456822.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 40370457 is about 6353.7750196242. The cubic root of 40370457 is about 343.0477342356.

The spelling of 40370457 in words is "forty million, three hundred seventy thousand, four hundred fifty-seven".