2490040839 has 32 divisors (see below), whose sum is σ = 4105785600. Its totient is φ = 1319708160.

The previous prime is 2490040811. The next prime is 2490040849. The reversal of 2490040839 is 9380400942.

It is not a de Polignac number, because 2490040839 - 2⁸ = 2490040583 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 2490040797 and 2490040806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490040849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144594 + ... + 160895.

It is an arithmetic number, because the mean of its divisors is an integer number (128305800).

Almost surely, 2^2490040839 is an apocalyptic number.

2490040839 is a deficient number, since it is larger than the sum of its proper divisors (1615744761).

2490040839 is a wasteful number, since it uses less digits than its factorization.

2490040839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305535.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 2490040839 is about 49900.3090070593. The cubic root of 2490040839 is about 1355.4041883675.

The spelling of 2490040839 in words is "two billion, four hundred ninety million, forty thousand, eight hundred thirty-nine".