20256302 has 8 divisors (see below), whose sum is σ = 33146712. Its totient is φ = 9207400.

The previous prime is 20256283. The next prime is 20256317. The reversal of 20256302 is 20365202.

It is a happy number.

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, 460349 + ... + 460392.

It is an arithmetic number, because the mean of its divisors is an integer number (4143339).

Almost surely, 2^20256302 is an apocalyptic number.

20256302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20256302 is a deficient number, since it is larger than the sum of its proper divisors (12890410).

20256302 is a wasteful number, since it uses less digits than its factorization.

20256302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920754.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 20256302 is about 4500.7001677517. The cubic root of 20256302 is about 272.5963612859.

Subtracting 20256302 from its reverse (20365202), we obtain a square (108900 = 330²).

The spelling of 20256302 in words is "twenty million, two hundred fifty-six thousand, three hundred two".