44920019 has 2 divisors, whose sum is σ = 44920020. Its totient is φ = 44920018.

The previous prime is 44920003. The next prime is 44920033. The reversal of 44920019 is 91002944.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44920019 - 2⁴ = 44920003 is a prime.

It is a super-2 number, since 2×44920019² = 4035616213920722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 44919973 and 44920000.

It is not a weakly prime, because it can be changed into another prime (44920049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22460009 + 22460010.

It is an arithmetic number, because the mean of its divisors is an integer number (22460010).

Almost surely, 2^44920019 is an apocalyptic number.

44920019 is a deficient number, since it is larger than the sum of its proper divisors (1).

44920019 is an equidigital number, since it uses as much as digits as its factorization.

44920019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 44920019 is about 6702.2398494832. The cubic root of 44920019 is about 355.4784766764.

The spelling of 44920019 in words is "forty-four million, nine hundred twenty thousand, nineteen".