49642578 has 32 divisors (see below), whose sum is σ = 111971520. Its totient is φ = 16299360.

The previous prime is 49642553. The next prime is 49642583. The reversal of 49642578 is 87524694.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3243 + ... + 10478.

It is an arithmetic number, because the mean of its divisors is an integer number (3499110).

Almost surely, 2^49642578 is an apocalyptic number.

49642578 is an abundant number, since it is smaller than the sum of its proper divisors (62328942).

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

49642578 is a wasteful number, since it uses less digits than its factorization.

49642578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13799 (or 13793 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 49642578 is about 7045.7489310931. The cubic root of 49642578 is about 367.5232138606.

The spelling of 49642578 in words is "forty-nine million, six hundred forty-two thousand, five hundred seventy-eight".