2620421828 has 24 divisors (see below), whose sum is σ = 4609449600. Its totient is φ = 1303454880.

The previous prime is 2620421789. The next prime is 2620421833. The reversal of 2620421828 is 8281240262.

It is a super-2 number, since 2×2620421828² = 13733221113317723168, which contains 22 as substring.

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, 683525 + ... + 687347.

It is an arithmetic number, because the mean of its divisors is an integer number (192060400).

Almost surely, 2^2620421828 is an apocalyptic number.

It is an amenable number.

2620421828 is a deficient number, since it is larger than the sum of its proper divisors (1989027772).

2620421828 is a wasteful number, since it uses less digits than its factorization.

2620421828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667 (or 4665 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 2620421828 is about 51190.0559483969. The cubic root of 2620421828 is about 1378.6596640931.

The spelling of 2620421828 in words is "two billion, six hundred twenty million, four hundred twenty-one thousand, eight hundred twenty-eight".