404378338 has 16 divisors (see below), whose sum is σ = 746544960. Its totient is φ = 159973776.

The previous prime is 404378239. The next prime is 404378347. The reversal of 404378338 is 833873404.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 404378338.

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, 1110748 + ... + 1111111.

It is an arithmetic number, because the mean of its divisors is an integer number (46659060).

Almost surely, 2^404378338 is an apocalyptic number.

404378338 is a deficient number, since it is larger than the sum of its proper divisors (342166622).

404378338 is a wasteful number, since it uses less digits than its factorization.

404378338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221881.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 404378338 is about 20109.1605493616. The cubic root of 404378338 is about 739.4848728064.

The spelling of 404378338 in words is "four hundred four million, three hundred seventy-eight thousand, three hundred thirty-eight".