2516438368 has 24 divisors (see below), whose sum is σ = 5035458960. Its totient is φ = 1237591680.

The previous prime is 2516438359. The next prime is 2516438369. The reversal of 2516438368 is 8638346152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2516438369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642628 + ... + 646531.

It is an arithmetic number, because the mean of its divisors is an integer number (209810790).

Almost surely, 2^2516438368 is an apocalyptic number.

It is an amenable number.

2516438368 is an abundant number, since it is smaller than the sum of its proper divisors (2519020592).

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

2516438368 is a wasteful number, since it uses less digits than its factorization.

2516438368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289230 (or 1289222 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 2516438368 is about 50164.1143448182. The cubic root of 2516438368 is about 1360.1770184807.

The spelling of 2516438368 in words is "two billion, five hundred sixteen million, four hundred thirty-eight thousand, three hundred sixty-eight".