20263902 has 8 divisors (see below), whose sum is σ = 40527816. Its totient is φ = 6754632.

The previous prime is 20263889. The next prime is 20263907. The reversal of 20263902 is 20936202.

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

20263902 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20263907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1688653 + ... + 1688664.

It is an arithmetic number, because the mean of its divisors is an integer number (5065977).

Almost surely, 2^20263902 is an apocalyptic number.

20263902 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20263902 is a wasteful number, since it uses less digits than its factorization.

20263902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377322.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20263902 is about 4501.5444016471. The cubic root of 20263902 is about 272.6304490034.

The spelling of 20263902 in words is "twenty million, two hundred sixty-three thousand, nine hundred two".