2451640288 has 24 divisors (see below), whose sum is σ = 5036523408. Its totient is φ = 1172523264.

The previous prime is 2451640267. The next prime is 2451640291. The reversal of 2451640288 is 8820461542.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2451640288.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1664781 + ... + 1666252.

It is an arithmetic number, because the mean of its divisors is an integer number (209855142).

Almost surely, 2^2451640288 is an apocalyptic number.

It is an amenable number.

2451640288 is an abundant number, since it is smaller than the sum of its proper divisors (2584883120).

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

2451640288 is a wasteful number, since it uses less digits than its factorization.

2451640288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331066 (or 3331058 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 2451640288 is about 49514.0413216292. The cubic root of 2451640288 is about 1348.4005360838.

The spelling of 2451640288 in words is "two billion, four hundred fifty-one million, six hundred forty thousand, two hundred eighty-eight".