2439919 has 2 divisors, whose sum is σ = 2439920. Its totient is φ = 2439918.

The previous prime is 2439907. The next prime is 2439929. The reversal of 2439919 is 9199342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2439919 - 2⁷ = 2439791 is a prime.

It is a super-2 number, since 2×2439919² = 11906409453122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2439929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1219959 + 1219960.

It is an arithmetic number, because the mean of its divisors is an integer number (1219960).

2^2439919 is an apocalyptic number.

2439919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2439919 is an equidigital number, since it uses as much as digits as its factorization.

2439919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 37.

The square root of 2439919 is about 1562.0240074980. The cubic root of 2439919 is about 134.6248202115.

The spelling of 2439919 in words is "two million, four hundred thirty-nine thousand, nine hundred nineteen".