49743920 has 20 divisors (see below), whose sum is σ = 115654800. Its totient is φ = 19897536.

The previous prime is 49743913. The next prime is 49743931. The reversal of 49743920 is 2934794.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310820 + ... + 310979.

It is an arithmetic number, because the mean of its divisors is an integer number (5782740).

Almost surely, 2^49743920 is an apocalyptic number.

49743920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49743920 is an abundant number, since it is smaller than the sum of its proper divisors (65910880).

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

49743920 is a wasteful number, since it uses less digits than its factorization.

49743920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621812 (or 621806 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 49743920 is about 7052.9369768913. The cubic root of 49743920 is about 367.7731352183.

The spelling of 49743920 in words is "forty-nine million, seven hundred forty-three thousand, nine hundred twenty".