404252630 has 8 divisors (see below), whose sum is σ = 727654752. Its totient is φ = 161701048.

The previous prime is 404252627. The next prime is 404252647. The reversal of 404252630 is 36252404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 404252630.

It is a congruent number.

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, 20212622 + ... + 20212641.

It is an arithmetic number, because the mean of its divisors is an integer number (90956844).

Almost surely, 2^404252630 is an apocalyptic number.

404252630 is a deficient number, since it is larger than the sum of its proper divisors (323402122).

404252630 is a wasteful number, since it uses less digits than its factorization.

404252630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40425270.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 404252630 is about 20106.0346662389. The cubic root of 404252630 is about 739.4082376441.

The spelling of 404252630 in words is "four hundred four million, two hundred fifty-two thousand, six hundred thirty".