49890066 has 16 divisors (see below), whose sum is σ = 101663424. Its totient is φ = 16316144.

The previous prime is 49890037. The next prime is 49890073. The reversal of 49890066 is 66009894.

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, 78126 + ... + 78761.

It is an arithmetic number, because the mean of its divisors is an integer number (6353964).

Almost surely, 2^49890066 is an apocalyptic number.

49890066 is an abundant number, since it is smaller than the sum of its proper divisors (51773358).

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

49890066 is a wasteful number, since it uses less digits than its factorization.

49890066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156945.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 49890066 is about 7063.2900266094. The cubic root of 49890066 is about 368.1329515281.

The spelling of 49890066 in words is "forty-nine million, eight hundred ninety thousand, sixty-six".