28192475 has 12 divisors (see below), whose sum is σ = 35145816. Its totient is φ = 22433280.

The previous prime is 28192453. The next prime is 28192481. The reversal of 28192475 is 57429182.

It is not a de Polignac number, because 28192475 - 2¹² = 28188379 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian 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, 1904 + ... + 7746.

It is an arithmetic number, because the mean of its divisors is an integer number (2928818).

Almost surely, 2^28192475 is an apocalyptic number.

28192475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28192475 is a deficient number, since it is larger than the sum of its proper divisors (6953341).

28192475 is a wasteful number, since it uses less digits than its factorization.

28192475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6046 (or 6041 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 28192475 is about 5309.6586519286. The cubic root of 28192475 is about 304.3531035243.

It can be divided in two parts, 2 and 8192475, that multiplied together give a triangular number (16384950 = T₅₇₂₄).

The spelling of 28192475 in words is "twenty-eight million, one hundred ninety-two thousand, four hundred seventy-five".