20292328 has 16 divisors (see below), whose sum is σ = 43483680. Its totient is φ = 8696688.

The previous prime is 20292299. The next prime is 20292341. The reversal of 20292328 is 82329202.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 20292296 and 20292305.

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, 181126 + ... + 181237.

It is an arithmetic number, because the mean of its divisors is an integer number (2717730).

Almost surely, 2^20292328 is an apocalyptic number.

20292328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20292328 is an abundant number, since it is smaller than the sum of its proper divisors (23191352).

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

20292328 is a wasteful number, since it uses less digits than its factorization.

20292328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362376 (or 362372 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20292328 is about 4504.7006559815. The cubic root of 20292328 is about 272.7578705334.

It can be divided in two parts, 20292 and 328, that multiplied together give a triangular number (6655776 = T₃₆₄₈).

The spelling of 20292328 in words is "twenty million, two hundred ninety-two thousand, three hundred twenty-eight".