408121804 has 6 divisors (see below), whose sum is σ = 714213164. Its totient is φ = 204060900.

The previous prime is 408121801. The next prime is 408121817.

408121804 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (408121801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51015222 + ... + 51015229.

Almost surely, 2^408121804 is an apocalyptic number.

It is an amenable number.

408121804 is a deficient number, since it is larger than the sum of its proper divisors (306091360).

408121804 is a wasteful number, since it uses less digits than its factorization.

408121804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102030455 (or 102030453 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 408121804 is about 20202.0247500096. The cubic root of 408121804 is about 741.7597539573.

The spelling of 408121804 in words is "four hundred eight million, one hundred twenty-one thousand, eight hundred four".