20480850 has 120 divisors (see below), whose sum is σ = 61441380. Its totient is φ = 5028480.

The previous prime is 20480849. The next prime is 20480899. The reversal of 20480850 is 5808402.

It can be written as a sum of positive squares in 6 ways, for example, as 1896129 + 18584721 = 1377^2 + 4311^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 52456 + ... + 52844.

Almost surely, 2^20480850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20480850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30720690).

20480850 is an abundant number, since it is smaller than the sum of its proper divisors (40960530).

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

20480850 is a wasteful number, since it uses less digits than its factorization.

20480850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 20480850 is about 4525.5773112389. The cubic root of 20480850 is about 273.5999365189.

The spelling of 20480850 in words is "twenty million, four hundred eighty thousand, eight hundred fifty".