2802134640 has 80 divisors (see below), whose sum is σ = 8966854656. Its totient is φ = 723129600.

The previous prime is 2802134623. The next prime is 2802134681. The reversal of 2802134640 is 464312082.

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 (30).

It is a junction number, because it is equal to n+sod(n) for n = 2802134598 and 2802134607.

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, 180876 + ... + 195755.

Almost surely, 2^2802134640 is an apocalyptic number.

2802134640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2802134640 is an abundant number, since it is smaller than the sum of its proper divisors (6164720016).

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

2802134640 is a wasteful number, since it uses less digits than its factorization.

2802134640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376678 (or 376672 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 2802134640 is about 52935.1928304790. The cubic root of 2802134640 is about 1409.8178327103.

The spelling of 2802134640 in words is "two billion, eight hundred two million, one hundred thirty-four thousand, six hundred forty".