49909768 has 8 divisors (see below), whose sum is σ = 93580830. Its totient is φ = 24954880.

The previous prime is 49909763. The next prime is 49909777. The reversal of 49909768 is 86790994.

It can be written as a sum of positive squares in only one way, i.e., 44063044 + 5846724 = 6638^2 + 2418^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (49909763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3119353 + ... + 3119368.

Almost surely, 2^49909768 is an apocalyptic number.

It is an amenable number.

49909768 is a deficient number, since it is larger than the sum of its proper divisors (43671062).

49909768 is a wasteful number, since it uses less digits than its factorization.

49909768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6238727 (or 6238723 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 49909768 is about 7064.6845647913. The cubic root of 49909768 is about 368.1814047337.

The spelling of 49909768 in words is "forty-nine million, nine hundred nine thousand, seven hundred sixty-eight".