49145988 has 24 divisors (see below), whose sum is σ = 114885792. Its totient is φ = 16351744.

The previous prime is 49145983. The next prime is 49146001. The reversal of 49145988 is 88954194.

49145988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×49145988² = 4830656272992288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49145983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3556 + ... + 10532.

It is an arithmetic number, because the mean of its divisors is an integer number (4786908).

Almost surely, 2^49145988 is an apocalyptic number.

It is an amenable number.

49145988 is an abundant number, since it is smaller than the sum of its proper divisors (65739804).

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

49145988 is a wasteful number, since it uses less digits than its factorization.

49145988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7571 (or 7569 counting only the distinct ones).

The product of its digits is 414720, while the sum is 48.

The square root of 49145988 is about 7010.4199588898. The cubic root of 49145988 is about 366.2936220645.

The spelling of 49145988 in words is "forty-nine million, one hundred forty-five thousand, nine hundred eighty-eight".