49249820 has 24 divisors (see below), whose sum is σ = 103665744. Its totient is φ = 19654016.

The previous prime is 49249819. The next prime is 49249873. The reversal of 49249820 is 2894294.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6704 + ... + 11976.

It is an arithmetic number, because the mean of its divisors is an integer number (4319406).

Almost surely, 2^49249820 is an apocalyptic number.

It is an amenable number.

49249820 is an abundant number, since it is smaller than the sum of its proper divisors (54415924).

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

49249820 is a wasteful number, since it uses less digits than its factorization.

49249820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749 (or 5747 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 49249820 is about 7017.8215993284. The cubic root of 49249820 is about 366.5513999481.

The spelling of 49249820 in words is "forty-nine million, two hundred forty-nine thousand, eight hundred twenty".