28013030 has 32 divisors (see below), whose sum is σ = 53969760. Its totient is φ = 10437120.

The previous prime is 28013009. The next prime is 28013053. The reversal of 28013030 is 3031082.

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, 10382 + ... + 12798.

It is an arithmetic number, because the mean of its divisors is an integer number (1686555).

Almost surely, 2^28013030 is an apocalyptic number.

28013030 is a deficient number, since it is larger than the sum of its proper divisors (25956730).

28013030 is a wasteful number, since it uses less digits than its factorization.

28013030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 28013030 is about 5292.7336981942. The cubic root of 28013030 is about 303.7059931618.

The spelling of 28013030 in words is "twenty-eight million, thirteen thousand, thirty".