404694669 has 8 divisors (see below), whose sum is σ = 541645632. Its totient is φ = 268770080.

The previous prime is 404694617. The next prime is 404694691. The reversal of 404694669 is 966496404.

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

It is a cyclic number.

It is not a de Polignac number, because 404694669 - 2¹¹ = 404692621 is a prime.

It is a super-2 number, since 2×404694669² = 327555550234039122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404694569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255672 + ... + 257249.

It is an arithmetic number, because the mean of its divisors is an integer number (67705704).

Almost surely, 2^404694669 is an apocalyptic number.

It is an amenable number.

404694669 is a deficient number, since it is larger than the sum of its proper divisors (136950963).

404694669 is a wasteful number, since it uses less digits than its factorization.

404694669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513187.

The product of its (nonzero) digits is 1119744, while the sum is 48.

The square root of 404694669 is about 20117.0243574938. The cubic root of 404694669 is about 739.6776469138.

The spelling of 404694669 in words is "four hundred four million, six hundred ninety-four thousand, six hundred sixty-nine".