406045057 has 4 divisors (see below), whose sum is σ = 442958256. Its totient is φ = 369131860.

The previous prime is 406045049. The next prime is 406045063. The reversal of 406045057 is 750540604.

It is a happy number.

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 406045057 - 2³ = 406045049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406045027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18456583 + ... + 18456604.

It is an arithmetic number, because the mean of its divisors is an integer number (110739564).

Almost surely, 2^406045057 is an apocalyptic number.

It is an amenable number.

406045057 is a deficient number, since it is larger than the sum of its proper divisors (36913199).

406045057 is a wasteful number, since it uses less digits than its factorization.

406045057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36913198.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 406045057 is about 20150.5597192733. The cubic root of 406045057 is about 740.4994540338.

The spelling of 406045057 in words is "four hundred six million, forty-five thousand, fifty-seven".