406454039 has 2 divisors, whose sum is σ = 406454040. Its totient is φ = 406454038.

The previous prime is 406453987. The next prime is 406454063. The reversal of 406454039 is 930454604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406454039 - 2²⁴ = 389676823 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406454239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203227019 + 203227020.

It is an arithmetic number, because the mean of its divisors is an integer number (203227020).

Almost surely, 2^406454039 is an apocalyptic number.

406454039 is a deficient number, since it is larger than the sum of its proper divisors (1).

406454039 is an equidigital number, since it uses as much as digits as its factorization.

406454039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 406454039 is about 20160.7053200031. The cubic root of 406454039 is about 740.7479891154.

The spelling of 406454039 in words is "four hundred six million, four hundred fifty-four thousand, thirty-nine".