49645590 has 16 divisors (see below), whose sum is σ = 119149488. Its totient is φ = 13238816.

The previous prime is 49645573. The next prime is 49645591. The reversal of 49645590 is 9554694.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49645591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827397 + ... + 827456.

It is an arithmetic number, because the mean of its divisors is an integer number (7446843).

Almost surely, 2^49645590 is an apocalyptic number.

49645590 is an abundant number, since it is smaller than the sum of its proper divisors (69503898).

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

49645590 is a wasteful number, since it uses less digits than its factorization.

49645590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654863.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 49645590 is about 7045.9626737586. The cubic root of 49645590 is about 367.5306467107.

The spelling of 49645590 in words is "forty-nine million, six hundred forty-five thousand, five hundred ninety".