49664730 has 64 divisors (see below), whose sum is σ = 123907968. Its totient is φ = 12729600.

The previous prime is 49664723. The next prime is 49664731. The reversal of 49664730 is 3746694.

It is not an unprimeable number, because it can be changed into a prime (49664731) 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, 111889 + ... + 112331.

It is an arithmetic number, because the mean of its divisors is an integer number (1936062).

Almost surely, 2^49664730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49664730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61953984).

49664730 is an abundant number, since it is smaller than the sum of its proper divisors (74243238).

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

49664730 is a wasteful number, since it uses less digits than its factorization.

49664730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 49664730 is about 7047.3207674974. The cubic root of 49664730 is about 367.5778723405.

The spelling of 49664730 in words is "forty-nine million, six hundred sixty-four thousand, seven hundred thirty".