44899021 has 2 divisors, whose sum is σ = 44899022. Its totient is φ = 44899020.

The previous prime is 44899007. The next prime is 44899031. The reversal of 44899021 is 12099844.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44555625 + 343396 = 6675^2 + 586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44899021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44899031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22449510 + 22449511.

It is an arithmetic number, because the mean of its divisors is an integer number (22449511).

Almost surely, 2^44899021 is an apocalyptic number.

It is an amenable number.

44899021 is a deficient number, since it is larger than the sum of its proper divisors (1).

44899021 is an equidigital number, since it uses as much as digits as its factorization.

44899021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 44899021 is about 6700.6731751370. The cubic root of 44899021 is about 355.4230782104.

The spelling of 44899021 in words is "forty-four million, eight hundred ninety-nine thousand, twenty-one".