404081376 has 24 divisors (see below), whose sum is σ = 1060713864. Its totient is φ = 134693760.

The previous prime is 404081371. The next prime is 404081399. The reversal of 404081376 is 673180404.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404081371) 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, 2104495 + ... + 2104686.

It is an arithmetic number, because the mean of its divisors is an integer number (44196411).

Almost surely, 2^404081376 is an apocalyptic number.

It is an amenable number.

404081376 is an abundant number, since it is smaller than the sum of its proper divisors (656632488).

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

404081376 is a wasteful number, since it uses less digits than its factorization.

404081376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4209194 (or 4209186 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 404081376 is about 20101.7754439751. The cubic root of 404081376 is about 739.3038107798.

The spelling of 404081376 in words is "four hundred four million, eighty-one thousand, three hundred seventy-six".