28692380 has 24 divisors (see below), whose sum is σ = 60693360. Its totient is φ = 11393280.

The previous prime is 28692331. The next prime is 28692403. The reversal of 28692380 is 8329682.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2381 + ... + 7940.

It is an arithmetic number, because the mean of its divisors is an integer number (2528890).

Almost surely, 2^28692380 is an apocalyptic number.

28692380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28692380 is an abundant number, since it is smaller than the sum of its proper divisors (32000980).

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

28692380 is a wasteful number, since it uses less digits than its factorization.

28692380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10469 (or 10467 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 28692380 is about 5356.5268598225. The cubic root of 28692380 is about 306.1414898094.

The spelling of 28692380 in words is "twenty-eight million, six hundred ninety-two thousand, three hundred eighty".