49644790 has 64 divisors (see below), whose sum is σ = 100590336. Its totient is φ = 17523072.

The previous prime is 49644767. The next prime is 49644797. The reversal of 49644790 is 9744694.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49644797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 463917 + ... + 464023.

It is an arithmetic number, because the mean of its divisors is an integer number (1571724).

Almost surely, 2^49644790 is an apocalyptic number.

49644790 is an abundant number, since it is smaller than the sum of its proper divisors (50945546).

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

49644790 is a wasteful number, since it uses less digits than its factorization.

49644790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 49644790 is about 7045.9059034307. The cubic root of 49644790 is about 367.5286725435.

The spelling of 49644790 in words is "forty-nine million, six hundred forty-four thousand, seven hundred ninety".