2651628 has 24 divisors (see below), whose sum is σ = 7071232. Its totient is φ = 757584.

The previous prime is 2651617. The next prime is 2651629. The reversal of 2651628 is 8261562.

It is a super-2 number, since 2×2651628² = 14062262100768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2651595 and 2651604.

It is not an unprimeable number, because it can be changed into a prime (2651629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15700 + ... + 15867.

2^2651628 is an apocalyptic number.

2651628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2651628 is an abundant number, since it is smaller than the sum of its proper divisors (4419604).

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

2651628 is a wasteful number, since it uses less digits than its factorization.

2651628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31581 (or 31579 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 2651628 is about 1628.3820190606. The cubic root of 2651628 is about 138.4110825656.

The spelling of 2651628 in words is "two million, six hundred fifty-one thousand, six hundred twenty-eight".