404760740 has 12 divisors (see below), whose sum is σ = 849997596. Its totient is φ = 161904288.

The previous prime is 404760737. The next prime is 404760751. The reversal of 404760740 is 47067404.

It can be written as a sum of positive squares in 2 ways, for example, as 82773604 + 321987136 = 9098^2 + 17944^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 404760697 and 404760706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10118999 + ... + 10119038.

It is an arithmetic number, because the mean of its divisors is an integer number (70833133).

Almost surely, 2^404760740 is an apocalyptic number.

It is an amenable number.

404760740 is an abundant number, since it is smaller than the sum of its proper divisors (445236856).

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

404760740 is a wasteful number, since it uses less digits than its factorization.

404760740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20238046 (or 20238044 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 404760740 is about 20118.6664568008. Note that the first 3 decimals coincide. The cubic root of 404760740 is about 739.7178983150.

The spelling of 404760740 in words is "four hundred four million, seven hundred sixty thousand, seven hundred forty".