44980381 has 2 divisors, whose sum is σ = 44980382. Its totient is φ = 44980380.

The previous prime is 44980367. The next prime is 44980399. The reversal of 44980381 is 18308944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25664356 + 19316025 = 5066^2 + 4395^2 .

It is a cyclic number.

It is not a de Polignac number, because 44980381 - 2⁷ = 44980253 is a prime.

It is a super-2 number, since 2×44980381² = 4046469349810322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44980381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44980681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22490190 + 22490191.

It is an arithmetic number, because the mean of its divisors is an integer number (22490191).

Almost surely, 2^44980381 is an apocalyptic number.

It is an amenable number.

44980381 is a deficient number, since it is larger than the sum of its proper divisors (1).

44980381 is an equidigital number, since it uses as much as digits as its factorization.

44980381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 44980381 is about 6706.7414591588. The cubic root of 44980381 is about 355.6376320539.

The spelling of 44980381 in words is "forty-four million, nine hundred eighty thousand, three hundred eighty-one".