20928294 has 20 divisors (see below), whose sum is σ = 46895244. Its totient is φ = 6976044.

The previous prime is 20928289. The next prime is 20928353. The reversal of 20928294 is 49282902.

It is a super-3 number, since 3×20928294³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 64432 + ... + 64755.

Almost surely, 2^20928294 is an apocalyptic number.

20928294 is an abundant number, since it is smaller than the sum of its proper divisors (25966950).

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

20928294 is a wasteful number, since it uses less digits than its factorization.

20928294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129201 (or 129192 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20928294 is about 4574.7452388084. The cubic root of 20928294 is about 275.5780414239.

The spelling of 20928294 in words is "twenty million, nine hundred twenty-eight thousand, two hundred ninety-four".