409020802 has 16 divisors (see below), whose sum is σ = 618089472. Its totient is φ = 202996800.

The previous prime is 409020791. The next prime is 409020803. The reversal of 409020802 is 208020904.

It is not an unprimeable number, because it can be changed into a prime (409020803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177703 + ... + 179989.

It is an arithmetic number, because the mean of its divisors is an integer number (38630592).

Almost surely, 2^409020802 is an apocalyptic number.

409020802 is a deficient number, since it is larger than the sum of its proper divisors (209068670).

409020802 is a wasteful number, since it uses less digits than its factorization.

409020802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2913.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 409020802 is about 20224.2627059678. The cubic root of 409020802 is about 742.3039963013.

The spelling of 409020802 in words is "four hundred nine million, twenty thousand, eight hundred two".