406474490 has 32 divisors (see below), whose sum is σ = 747584640. Its totient is φ = 159067584.

The previous prime is 406474487. The next prime is 406474501. The reversal of 406474490 is 94474604.

It is a happy number.

It is a super-2 number, since 2×406474490² = 330443022041520200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231797 + ... + 233543.

It is an arithmetic number, because the mean of its divisors is an integer number (23362020).

Almost surely, 2^406474490 is an apocalyptic number.

406474490 is a deficient number, since it is larger than the sum of its proper divisors (341110150).

406474490 is a wasteful number, since it uses less digits than its factorization.

406474490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 406474490 is about 20161.2125131402. The cubic root of 406474490 is about 740.7604126464.

The spelling of 406474490 in words is "four hundred six million, four hundred seventy-four thousand, four hundred ninety".