404469942 has 8 divisors (see below), whose sum is σ = 808939896. Its totient is φ = 134823312.

The previous prime is 404469917. The next prime is 404469943. The reversal of 404469942 is 249964404.

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

404469942 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 404469894 and 404469903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404469943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33705823 + ... + 33705834.

It is an arithmetic number, because the mean of its divisors is an integer number (101117487).

Almost surely, 2^404469942 is an apocalyptic number.

404469942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

404469942 is a wasteful number, since it uses less digits than its factorization.

404469942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67411662.

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 404469942 is about 20111.4380888091. The cubic root of 404469942 is about 739.5407072000.

The spelling of 404469942 in words is "four hundred four million, four hundred sixty-nine thousand, nine hundred forty-two".