28813142 has 8 divisors (see below), whose sum is σ = 43293432. Its totient is φ = 14382000.

The previous prime is 28813133. The next prime is 28813157. The reversal of 28813142 is 24131882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10784 + ... + 13187.

It is an arithmetic number, because the mean of its divisors is an integer number (5411679).

Almost surely, 2^28813142 is an apocalyptic number.

28813142 is a deficient number, since it is larger than the sum of its proper divisors (14480290).

28813142 is a wasteful number, since it uses less digits than its factorization.

28813142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24574.

The product of its digits is 3072, while the sum is 29.

The square root of 28813142 is about 5367.7874399048. The cubic root of 28813142 is about 306.5703901200.

The spelling of 28813142 in words is "twenty-eight million, eight hundred thirteen thousand, one hundred forty-two".