2599993242 has 80 divisors (see below), whose sum is σ = 7263508032. Its totient is φ = 675319680.

The previous prime is 2599993217. The next prime is 2599993267. The reversal of 2599993242 is 2423999952.

It is a happy number.

2599993242 is a `hidden beast` number, since 2 + 599 + 9 + 9 + 3 + 2 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (2599993217) and next prime (2599993267).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 91743 + ... + 116690.

Almost surely, 2^2599993242 is an apocalyptic number.

2599993242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2599993242 is an abundant number, since it is smaller than the sum of its proper divisors (4663514790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2599993242 is a wasteful number, since it uses less digits than its factorization.

2599993242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208465 (or 208456 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 2599993242 is about 50990.1288682427. The cubic root of 2599993242 is about 1375.0676756993.

The spelling of 2599993242 in words is "two billion, five hundred ninety-nine million, nine hundred ninety-three thousand, two hundred forty-two".