49897824 has 24 divisors (see below), whose sum is σ = 130982040. Its totient is φ = 16632576.

The previous prime is 49897807. The next prime is 49897829. The reversal of 49897824 is 42879894.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49897829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259789 + ... + 259980.

It is an arithmetic number, because the mean of its divisors is an integer number (5457585).

Almost surely, 2^49897824 is an apocalyptic number.

It is an amenable number.

49897824 is an abundant number, since it is smaller than the sum of its proper divisors (81084216).

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

49897824 is a wasteful number, since it uses less digits than its factorization.

49897824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519782 (or 519774 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 49897824 is about 7063.8391827674. The cubic root of 49897824 is about 368.1520323301.

It can be divided in two parts, 49897 and 824, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 49897824 in words is "forty-nine million, eight hundred ninety-seven thousand, eight hundred twenty-four".