44287290 has 128 divisors (see below), whose sum is σ = 127008000. Its totient is φ = 10948608.

The previous prime is 44287279. The next prime is 44287297. The reversal of 44287290 is 9278244.

44287290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×44287290² = 3922728111088200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44287297) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 456522 + ... + 456618.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^44287290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44287290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63504000).

44287290 is an abundant number, since it is smaller than the sum of its proper divisors (82720710).

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

44287290 is a wasteful number, since it uses less digits than its factorization.

44287290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 44287290 is about 6654.8696456054. The cubic root of 44287290 is about 353.8015262049.

The spelling of 44287290 in words is "forty-four million, two hundred eighty-seven thousand, two hundred ninety".