406466731 has 4 divisors (see below), whose sum is σ = 443418264. Its totient is φ = 369515200.

The previous prime is 406466707. The next prime is 406466759. The reversal of 406466731 is 137664604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406466731 - 2²¹ = 404369579 is a prime.

It is a super-2 number, since 2×406466731² = 330430406819652722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406466231) 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, 18475750 + ... + 18475771.

It is an arithmetic number, because the mean of its divisors is an integer number (110854566).

Almost surely, 2^406466731 is an apocalyptic number.

406466731 is a deficient number, since it is larger than the sum of its proper divisors (36951533).

406466731 is a wasteful number, since it uses less digits than its factorization.

406466731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36951532.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 406466731 is about 20161.0200882793. The cubic root of 406466731 is about 740.7556992743.

The spelling of 406466731 in words is "four hundred six million, four hundred sixty-six thousand, seven hundred thirty-one".