28415092 has 12 divisors (see below), whose sum is σ = 52651620. Its totient is φ = 13371776.

The previous prime is 28415071. The next prime is 28415117. The reversal of 28415092 is 29051482.

It can be written as a sum of positive squares in 2 ways, for example, as 23775376 + 4639716 = 4876^2 + 2154^2 .

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, 208867 + ... + 209002.

It is an arithmetic number, because the mean of its divisors is an integer number (4387635).

Almost surely, 2^28415092 is an apocalyptic number.

It is an amenable number.

28415092 is a deficient number, since it is larger than the sum of its proper divisors (24236528).

28415092 is a wasteful number, since it uses less digits than its factorization.

28415092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417890 (or 417888 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 28415092 is about 5330.5808313916. The cubic root of 28415092 is about 305.1520947056.

It can be divided in two parts, 284 and 15092, that added together give a square (15376 = 124²).

The spelling of 28415092 in words is "twenty-eight million, four hundred fifteen thousand, ninety-two".