28292830 has 16 divisors (see below), whose sum is σ = 51197184. Its totient is φ = 11257120.

The previous prime is 28292821. The next prime is 28292851. The reversal of 28292830 is 3829282.

It is a happy number.

It is a congruent number.

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, 5497 + ... + 9316.

It is an arithmetic number, because the mean of its divisors is an integer number (3199824).

Almost surely, 2^28292830 is an apocalyptic number.

28292830 is a deficient number, since it is larger than the sum of its proper divisors (22904354).

28292830 is a wasteful number, since it uses less digits than its factorization.

28292830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 28292830 is about 5319.1004878645. The cubic root of 28292830 is about 304.7138048120.

The spelling of 28292830 in words is "twenty-eight million, two hundred ninety-two thousand, eight hundred thirty".