2640242316 has 48 divisors (see below), whose sum is σ = 6262552800. Its totient is φ = 865615872.

The previous prime is 2640242309. The next prime is 2640242323. The reversal of 2640242316 is 6132420462.

It is an interprime number because it is at equal distance from previous prime (2640242309) and next prime (2640242323).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199720 + ... + 212528.

It is an arithmetic number, because the mean of its divisors is an integer number (130469850).

Almost surely, 2^2640242316 is an apocalyptic number.

It is an amenable number.

2640242316 is an abundant number, since it is smaller than the sum of its proper divisors (3622310484).

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

2640242316 is a wasteful number, since it uses less digits than its factorization.

2640242316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13098 (or 13096 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 2640242316 is about 51383.2882949311. The cubic root of 2640242316 is about 1382.1269302165.

Adding to 2640242316 its reverse (6132420462), we get a palindrome (8772662778).

The spelling of 2640242316 in words is "two billion, six hundred forty million, two hundred forty-two thousand, three hundred sixteen".