2995617640 has 64 divisors (see below), whose sum is σ = 7006176000. Its totient is φ = 1151351040.

The previous prime is 2995617631. The next prime is 2995617671. The reversal of 2995617640 is 467165992.

It is a happy number.

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, 238641 + ... + 250879.

It is an arithmetic number, because the mean of its divisors is an integer number (109471500).

Almost surely, 2^2995617640 is an apocalyptic number.

2995617640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2995617640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3503088000).

2995617640 is an abundant number, since it is smaller than the sum of its proper divisors (4010558360).

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

2995617640 is a wasteful number, since it uses less digits than its factorization.

2995617640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12490 (or 12486 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 2995617640 is about 54732.2358395854. The cubic root of 2995617640 is about 1441.5469550919.

The spelling of 2995617640 in words is "two billion, nine hundred ninety-five million, six hundred seventeen thousand, six hundred forty".