404993355 has 16 divisors (see below), whose sum is σ = 697835040. Its totient is φ = 199381248.

The previous prime is 404993327. The next prime is 404993371. The reversal of 404993355 is 553399404.

It is a happy number.

It is not a de Polignac number, because 404993355 - 2⁶ = 404993291 is a prime.

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, 1038250 + ... + 1038639.

It is an arithmetic number, because the mean of its divisors is an integer number (43614690).

Almost surely, 2^404993355 is an apocalyptic number.

404993355 is a deficient number, since it is larger than the sum of its proper divisors (292841685).

404993355 is a wasteful number, since it uses less digits than its factorization.

404993355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076910.

The product of its (nonzero) digits is 291600, while the sum is 42.

The square root of 404993355 is about 20124.4467004686. The cubic root of 404993355 is about 739.8595758624.

The spelling of 404993355 in words is "four hundred four million, nine hundred ninety-three thousand, three hundred fifty-five".