44139419 has 2 divisors, whose sum is σ = 44139420. Its totient is φ = 44139418.

The previous prime is 44139383. The next prime is 44139437. The reversal of 44139419 is 91493144.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44139419 - 2⁸ = 44139163 is a prime.

It is a super-2 number, since 2×44139419² = 3896576619315122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44139499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22069709 + 22069710.

It is an arithmetic number, because the mean of its divisors is an integer number (22069710).

Almost surely, 2^44139419 is an apocalyptic number.

44139419 is a deficient number, since it is larger than the sum of its proper divisors (1).

44139419 is an equidigital number, since it uses as much as digits as its factorization.

44139419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 44139419 is about 6643.7503715898. The cubic root of 44139419 is about 353.4073173859.

The spelling of 44139419 in words is "forty-four million, one hundred thirty-nine thousand, four hundred nineteen".