404647340 has 24 divisors (see below), whose sum is σ = 877172352. Its totient is φ = 156637440.

The previous prime is 404647333. The next prime is 404647471. The reversal of 404647340 is 43746404.

It is a junction number, because it is equal to n+sod(n) for n = 404647297 and 404647306.

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, 325709 + ... + 326948.

It is an arithmetic number, because the mean of its divisors is an integer number (36548848).

Almost surely, 2^404647340 is an apocalyptic number.

It is an amenable number.

404647340 is an abundant number, since it is smaller than the sum of its proper divisors (472525012).

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

404647340 is a wasteful number, since it uses less digits than its factorization.

404647340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652697 (or 652695 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 404647340 is about 20115.8479811317. The cubic root of 404647340 is about 739.6488107146.

The spelling of 404647340 in words is "four hundred four million, six hundred forty-seven thousand, three hundred forty".