28794142 has 8 divisors (see below), whose sum is σ = 46513656. Its totient is φ = 13289592.

The previous prime is 28794131. The next prime is 28794149. The reversal of 28794142 is 24149782.

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

It is a super-2 number, since 2×28794142² = 1658205227032328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28794149) 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, 553708 + ... + 553759.

It is an arithmetic number, because the mean of its divisors is an integer number (5814207).

Almost surely, 2^28794142 is an apocalyptic number.

28794142 is a deficient number, since it is larger than the sum of its proper divisors (17719514).

28794142 is a wasteful number, since it uses less digits than its factorization.

28794142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107482.

The product of its digits is 32256, while the sum is 37.

The square root of 28794142 is about 5366.0173313175. The cubic root of 28794142 is about 306.5029889526.

It can be divided in two parts, 2879 and 4142, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 28794142 in words is "twenty-eight million, seven hundred ninety-four thousand, one hundred forty-two".