2495236440 has 32 divisors (see below), whose sum is σ = 7485709680. Its totient is φ = 665396352.

The previous prime is 2495236391. The next prime is 2495236453. The reversal of 2495236440 is 446325942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10396699 + ... + 10396938.

Almost surely, 2^2495236440 is an apocalyptic number.

2495236440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2495236440 is an abundant number, since it is smaller than the sum of its proper divisors (4990473240).

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

2495236440 is a wasteful number, since it uses less digits than its factorization.

2495236440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20793651 (or 20793647 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 2495236440 is about 49952.3416868519. The cubic root of 2495236440 is about 1356.3462408009.

The spelling of 2495236440 in words is "two billion, four hundred ninety-five million, two hundred thirty-six thousand, four hundred forty".