407404020 has 24 divisors (see below), whose sum is σ = 1140731424. Its totient is φ = 108641056.

The previous prime is 407404013. The next prime is 407404033. The reversal of 407404020 is 20404704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3394974 + ... + 3395093.

It is an arithmetic number, because the mean of its divisors is an integer number (47530476).

Almost surely, 2^407404020 is an apocalyptic number.

It is an amenable number.

407404020 is an abundant number, since it is smaller than the sum of its proper divisors (733327404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

407404020 is a wasteful number, since it uses less digits than its factorization.

407404020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790079 (or 6790077 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 407404020 is about 20184.2517820206. The cubic root of 407404020 is about 741.3246422526.

Adding to 407404020 its reverse (20404704), we get a palindrome (427808724).

The spelling of 407404020 in words is "four hundred seven million, four hundred four thousand, twenty".