2802630640 has 80 divisors (see below), whose sum is σ = 6744139776. Its totient is φ = 1082016000.

The previous prime is 2802630617. The next prime is 2802630653. The reversal of 2802630640 is 460362082.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent 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, 1097365 + ... + 1099915.

Almost surely, 2^2802630640 is an apocalyptic number.

2802630640 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 2802630640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3372069888).

2802630640 is an abundant number, since it is smaller than the sum of its proper divisors (3941509136).

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

2802630640 is a wasteful number, since it uses less digits than its factorization.

2802630640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038 (or 3032 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2802630640 is about 52939.8775971384. The cubic root of 2802630640 is about 1409.9010107727.

The spelling of 2802630640 in words is "two billion, eight hundred two million, six hundred thirty thousand, six hundred forty".