404253694 has 16 divisors (see below), whose sum is σ = 662225760. Its totient is φ = 183949920.

The previous prime is 404253683. The next prime is 404253713. The reversal of 404253694 is 496352404.

It is a happy number.

It is a super-2 number, since 2×404253694² = 326842098225291272, which contains 22 as substring.

It is a congruent number.

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, 107649 + ... + 111340.

It is an arithmetic number, because the mean of its divisors is an integer number (41389110).

Almost surely, 2^404253694 is an apocalyptic number.

404253694 is a deficient number, since it is larger than the sum of its proper divisors (257972066).

404253694 is a wasteful number, since it uses less digits than its factorization.

404253694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219075.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 404253694 is about 20106.0611259391. The cubic root of 404253694 is about 739.4088863553.

The spelling of 404253694 in words is "four hundred four million, two hundred fifty-three thousand, six hundred ninety-four".