20265102 has 48 divisors (see below), whose sum is σ = 51590448. Its totient is φ = 5667840.

The previous prime is 20265067. The next prime is 20265121. The reversal of 20265102 is 20156202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1363 + ... + 6510.

It is an arithmetic number, because the mean of its divisors is an integer number (1074801).

Almost surely, 2^20265102 is an apocalyptic number.

20265102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20265102 is an abundant number, since it is smaller than the sum of its proper divisors (31325346).

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

20265102 is a wasteful number, since it uses less digits than its factorization.

20265102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7905 (or 7902 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 20265102 is about 4501.6776872628. The cubic root of 20265102 is about 272.6358304954.

Subtracting from 20265102 its reverse (20156202), we obtain a square (108900 = 330²).

The spelling of 20265102 in words is "twenty million, two hundred sixty-five thousand, one hundred two".