28340892 has 36 divisors (see below), whose sum is σ = 72028320. Its totient is φ = 9395712.

The previous prime is 28340861. The next prime is 28340911. The reversal of 28340892 is 29804382.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4909 + ... + 8987.

Almost surely, 2^28340892 is an apocalyptic number.

It is an amenable number.

28340892 is an abundant number, since it is smaller than the sum of its proper divisors (43687428).

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

28340892 is a wasteful number, since it uses less digits than its factorization.

28340892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282 (or 4277 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 28340892 is about 5323.6164399776. The cubic root of 28340892 is about 304.8862497973.

The spelling of 28340892 in words is "twenty-eight million, three hundred forty thousand, eight hundred ninety-two".