2630728 has 16 divisors (see below), whose sum is σ = 4950000. Its totient is φ = 1310736.

The previous prime is 2630713. The next prime is 2630729. The reversal of 2630728 is 8270362.

It is a d-powerful number, because it can be written as 2⁵ + 6 + 3¹² + 0 + 7² + 2¹¹ + 8⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 2630696 and 2630705.

It is not an unprimeable number, because it can be changed into a prime (2630729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3663 + ... + 4321.

It is an arithmetic number, because the mean of its divisors is an integer number (309375).

2^2630728 is an apocalyptic number.

It is an amenable number.

2630728 is a deficient number, since it is larger than the sum of its proper divisors (2319272).

2630728 is a wasteful number, since it uses less digits than its factorization.

2630728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2630728 is about 1621.9519105078. The cubic root of 2630728 is about 138.0464731807.

It can be divided in two parts, 26307 and 28, that added together give a triangular number (26335 = T₂₂₉).

The spelling of 2630728 in words is "two million, six hundred thirty thousand, seven hundred twenty-eight".