404674140 has 48 divisors (see below), whose sum is σ = 1220250528. Its totient is φ = 99611904.

The previous prime is 404674139. The next prime is 404674177. The reversal of 404674140 is 41476404.

It is a super-2 number, since 2×404674140² = 327522319169479200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 404674098 and 404674107.

It is a congruent number.

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, 258627 + ... + 260186.

It is an arithmetic number, because the mean of its divisors is an integer number (25421886).

Almost surely, 2^404674140 is an apocalyptic number.

It is an amenable number.

404674140 is an abundant number, since it is smaller than the sum of its proper divisors (815576388).

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

404674140 is a wasteful number, since it uses less digits than its factorization.

404674140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518838 (or 518836 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 404674140 is about 20116.5141115453. The cubic root of 404674140 is about 739.6651394603.

The spelling of 404674140 in words is "four hundred four million, six hundred seventy-four thousand, one hundred forty".