44488890 has 48 divisors (see below), whose sum is σ = 116001288. Its totient is φ = 11829888.

The previous prime is 44488883. The next prime is 44488903. The reversal of 44488890 is 9888444.

It can be written as a sum of positive squares in 4 ways, for example, as 32524209 + 11964681 = 5703^2 + 3459^2 .

It is a super-2 number, since 2×44488890² = 3958522666864200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58392 + ... + 59148.

Almost surely, 2^44488890 is an apocalyptic number.

44488890 is an abundant number, since it is smaller than the sum of its proper divisors (71512398).

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

44488890 is a wasteful number, since it uses less digits than its factorization.

44488890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 44488890 is about 6669.9992503748. Note that the first 3 decimals coincide. The cubic root of 44488890 is about 354.3375598492.

The spelling of 44488890 in words is "forty-four million, four hundred eighty-eight thousand, eight hundred ninety".