20253898 has 16 divisors (see below), whose sum is σ = 35460864. Its totient is φ = 8495280.

The previous prime is 20253887. The next prime is 20253929. The reversal of 20253898 is 89835202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14733 + ... + 16048.

It is an arithmetic number, because the mean of its divisors is an integer number (2216304).

Almost surely, 2^20253898 is an apocalyptic number.

20253898 is a deficient number, since it is larger than the sum of its proper divisors (15206966).

20253898 is a wasteful number, since it uses less digits than its factorization.

20253898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30837.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 20253898 is about 4500.4330902703. The cubic root of 20253898 is about 272.5855770276.

The spelling of 20253898 in words is "twenty million, two hundred fifty-three thousand, eight hundred ninety-eight".