44422290 has 64 divisors (see below), whose sum is σ = 129237120. Its totient is φ = 10768320.

The previous prime is 44422277. The next prime is 44422297. The reversal of 44422290 is 9222444.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (44422297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4509 + ... + 10448.

It is an arithmetic number, because the mean of its divisors is an integer number (2019330).

Almost surely, 2^44422290 is an apocalyptic number.

44422290 is an abundant number, since it is smaller than the sum of its proper divisors (84814830).

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

44422290 is a wasteful number, since it uses less digits than its factorization.

44422290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14984 (or 14978 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 44422290 is about 6665.0048762173. The cubic root of 44422290 is about 354.1606567531.

The spelling of 44422290 in words is "forty-four million, four hundred twenty-two thousand, two hundred ninety".