404749899 has 16 divisors (see below), whose sum is σ = 601920000. Its totient is φ = 268802568.

The previous prime is 404749879. The next prime is 404749979. The reversal of 404749899 is 998947404.

It is a happy number.

It is not a de Polignac number, because 404749899 - 2²⁰ = 403701323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404749859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21399 + ... + 35600.

It is an arithmetic number, because the mean of its divisors is an integer number (37620000).

Almost surely, 2^404749899 is an apocalyptic number.

404749899 is a deficient number, since it is larger than the sum of its proper divisors (197170101).

404749899 is a wasteful number, since it uses less digits than its factorization.

404749899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57271 (or 57265 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 404749899 is about 20118.3970285905. The cubic root of 404749899 is about 739.7112941226.

The spelling of 404749899 in words is "four hundred four million, seven hundred forty-nine thousand, eight hundred ninety-nine".