49390842 has 16 divisors (see below), whose sum is σ = 103980960. Its totient is φ = 15597072.

The previous prime is 49390813. The next prime is 49390849. The reversal of 49390842 is 24809394.

It is a self number, because there is not a number n which added to its sum of digits gives 49390842.

It is not an unprimeable number, because it can be changed into a prime (49390849) 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, 216513 + ... + 216740.

It is an arithmetic number, because the mean of its divisors is an integer number (6498810).

Almost surely, 2^49390842 is an apocalyptic number.

49390842 is an abundant number, since it is smaller than the sum of its proper divisors (54590118).

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

49390842 is a wasteful number, since it uses less digits than its factorization.

49390842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433277.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 49390842 is about 7027.8618370028. The cubic root of 49390842 is about 366.9009278024.

The spelling of 49390842 in words is "forty-nine million, three hundred ninety thousand, eight hundred forty-two".