44991854 has 16 divisors (see below), whose sum is σ = 68462928. Its totient is φ = 22173312.

The previous prime is 44991839. The next prime is 44991913. The reversal of 44991854 is 45819944.

It is a congruent number.

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, 50864 + ... + 51740.

It is an arithmetic number, because the mean of its divisors is an integer number (4278933).

Almost surely, 2^44991854 is an apocalyptic number.

44991854 is a deficient number, since it is larger than the sum of its proper divisors (23471074).

44991854 is a wasteful number, since it uses less digits than its factorization.

44991854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219.

The product of its digits is 207360, while the sum is 44.

The square root of 44991854 is about 6707.5967380277. The cubic root of 44991854 is about 355.6678665961.

The spelling of 44991854 in words is "forty-four million, nine hundred ninety-one thousand, eight hundred fifty-four".