20928302 has 8 divisors (see below), whose sum is σ = 31414800. Its totient is φ = 10456704.

The previous prime is 20928289. The next prime is 20928353. The reversal of 20928302 is 20382902.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 974 + ... + 6542.

It is an arithmetic number, because the mean of its divisors is an integer number (3926850).

Almost surely, 2^20928302 is an apocalyptic number.

20928302 is a deficient number, since it is larger than the sum of its proper divisors (10486498).

20928302 is a wasteful number, since it uses less digits than its factorization.

20928302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7450.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20928302 is about 4574.7461131739. The cubic root of 20928302 is about 275.5780765378.

The spelling of 20928302 in words is "twenty million, nine hundred twenty-eight thousand, three hundred two".