44345290 has 48 divisors (see below), whose sum is σ = 89210016. Its totient is φ = 15855840.

The previous prime is 44345269. The next prime is 44345303. The reversal of 44345290 is 9254344.

It is a happy number.

44345290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80797 + ... + 81343.

It is an arithmetic number, because the mean of its divisors is an integer number (1858542).

Almost surely, 2^44345290 is an apocalyptic number.

44345290 is an abundant number, since it is smaller than the sum of its proper divisors (44864726).

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

44345290 is a wasteful number, since it uses less digits than its factorization.

44345290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 44345290 is about 6659.2259309923. The cubic root of 44345290 is about 353.9559086243.

The spelling of 44345290 in words is "forty-four million, three hundred forty-five thousand, two hundred ninety".