404949856 has 24 divisors (see below), whose sum is σ = 804991824. Its totient is φ = 200507520.

The previous prime is 404949841. The next prime is 404949887. The reversal of 404949856 is 658949404.

It is a super-3 number, since 3×404949856³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58135 + ... + 64726.

It is an arithmetic number, because the mean of its divisors is an integer number (33541326).

Almost surely, 2^404949856 is an apocalyptic number.

It is an amenable number.

404949856 is a deficient number, since it is larger than the sum of its proper divisors (400041968).

404949856 is a wasteful number, since it uses less digits than its factorization.

404949856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122974 (or 122966 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 404949856 is about 20123.3659212369. The cubic root of 404949856 is about 739.8330862887.

The spelling of 404949856 in words is "four hundred four million, nine hundred forty-nine thousand, eight hundred fifty-six".