49253868 has 18 divisors (see below), whose sum is σ = 124502924. Its totient is φ = 16417944.

The previous prime is 49253863. The next prime is 49253881. The reversal of 49253868 is 86835294.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×49253868² = 4851887025922848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49253863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 684046 + ... + 684117.

Almost surely, 2^49253868 is an apocalyptic number.

It is an amenable number.

49253868 is an abundant number, since it is smaller than the sum of its proper divisors (75249056).

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

49253868 is a wasteful number, since it uses less digits than its factorization.

49253868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368173 (or 1368168 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 49253868 is about 7018.1100019877. The cubic root of 49253868 is about 366.5614423497.

The spelling of 49253868 in words is "forty-nine million, two hundred fifty-three thousand, eight hundred sixty-eight".