404066416 has 20 divisors (see below), whose sum is σ = 843100552. Its totient is φ = 186492096.

The previous prime is 404066413. The next prime is 404066419. The reversal of 404066416 is 614660404.

It is an interprime number because it is at equal distance from previous prime (404066413) and next prime (404066419).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404066413) 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, 971106 + ... + 971521.

Almost surely, 2^404066416 is an apocalyptic number.

It is an amenable number.

404066416 is an abundant number, since it is smaller than the sum of its proper divisors (439034136).

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

404066416 is a wasteful number, since it uses less digits than its factorization.

404066416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942648 (or 1942642 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 404066416 is about 20101.4033340959. The cubic root of 404066416 is about 739.2946871048.

The spelling of 404066416 in words is "four hundred four million, sixty-six thousand, four hundred sixteen".