20485102 has 16 divisors (see below), whose sum is σ = 35493552. Its totient is φ = 8763520.

The previous prime is 20485099. The next prime is 20485109. The reversal of 20485102 is 20158402.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20485109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27013 + ... + 27760.

It is an arithmetic number, because the mean of its divisors is an integer number (2218347).

Almost surely, 2^20485102 is an apocalyptic number.

20485102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20485102 is a deficient number, since it is larger than the sum of its proper divisors (15008450).

20485102 is a wasteful number, since it uses less digits than its factorization.

20485102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54803.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 20485102 is about 4526.0470611782. The cubic root of 20485102 is about 273.6188691061.

The spelling of 20485102 in words is "twenty million, four hundred eighty-five thousand, one hundred two".