44898381 has 42 divisors (see below), whose sum is σ = 74138190. Its totient is φ = 27157680.

The previous prime is 44898361. The next prime is 44898397. The reversal of 44898381 is 18389844.

It can be written as a sum of positive squares in only one way, i.e., 42693156 + 2205225 = 6534^2 + 1485^2 .

It is not a de Polignac number, because 44898381 - 2⁷ = 44898253 is a prime.

It is a super-2 number, since 2×44898381² = 4031729232842322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44898331) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 87955 + ... + 88463.

It is an arithmetic number, because the mean of its divisors is an integer number (1765195).

Almost surely, 2^44898381 is an apocalyptic number.

It is an amenable number.

44898381 is a deficient number, since it is larger than the sum of its proper divisors (29239809).

44898381 is an equidigital number, since it uses as much as digits as its factorization.

44898381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 523 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 44898381 is about 6700.6254185710. The cubic root of 44898381 is about 355.4213894442.

The spelling of 44898381 in words is "forty-four million, eight hundred ninety-eight thousand, three hundred eighty-one".