28146992 has 40 divisors (see below), whose sum is σ = 56527632. Its totient is φ = 13568000.

The previous prime is 28146991. The next prime is 28147001. The reversal of 28146992 is 29964182.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (28146991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69992 + ... + 70392.

Almost surely, 2^28146992 is an apocalyptic number.

It is an amenable number.

28146992 is an abundant number, since it is smaller than the sum of its proper divisors (28380640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28146992 is a wasteful number, since it uses less digits than its factorization.

28146992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 551 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 28146992 is about 5305.3738793793. The cubic root of 28146992 is about 304.1893441861.

The spelling of 28146992 in words is "twenty-eight million, one hundred forty-six thousand, nine hundred ninety-two".