49723818 has 16 divisors (see below), whose sum is σ = 99530976. Its totient is φ = 16560720.

The previous prime is 49723799. The next prime is 49723823. The reversal of 49723818 is 81832794.

It is a self number, because there is not a number n which added to its sum of digits gives 49723818.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6480 + ... + 11892.

It is an arithmetic number, because the mean of its divisors is an integer number (6220686).

Almost surely, 2^49723818 is an apocalyptic number.

49723818 is an abundant number, since it is smaller than the sum of its proper divisors (49807158).

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

49723818 is a wasteful number, since it uses less digits than its factorization.

49723818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6949.

The product of its digits is 96768, while the sum is 42.

The square root of 49723818 is about 7051.5117528088. The cubic root of 49723818 is about 367.7235883146.

The spelling of 49723818 in words is "forty-nine million, seven hundred twenty-three thousand, eight hundred eighteen".