2539490393 has 8 divisors (see below), whose sum is σ = 2795770560. Its totient is φ = 2287446480.

The previous prime is 2539490383. The next prime is 2539490399. The reversal of 2539490393 is 3930949352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2539490393 - 2⁸ = 2539490137 is a prime.

It is a super-2 number, since 2×2539490393² = 12898022912278588898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2539490399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1057805 + ... + 1060202.

It is an arithmetic number, because the mean of its divisors is an integer number (349471320).

Almost surely, 2^2539490393 is an apocalyptic number.

It is an amenable number.

2539490393 is a deficient number, since it is larger than the sum of its proper divisors (256280167).

2539490393 is a wasteful number, since it uses less digits than its factorization.

2539490393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118127.

The product of its (nonzero) digits is 787320, while the sum is 47.

The square root of 2539490393 is about 50393.3566355725. The cubic root of 2539490393 is about 1364.3177353167.

The spelling of 2539490393 in words is "two billion, five hundred thirty-nine million, four hundred ninety thousand, three hundred ninety-three".