20468970 has 64 divisors (see below), whose sum is σ = 55779840. Its totient is φ = 5338944.

The previous prime is 20468957. The next prime is 20468999. The reversal of 20468970 is 7986402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11884 + ... + 13496.

It is an arithmetic number, because the mean of its divisors is an integer number (871560).

Almost surely, 2^20468970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20468970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27889920).

20468970 is an abundant number, since it is smaller than the sum of its proper divisors (35310870).

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

20468970 is a wasteful number, since it uses less digits than its factorization.

20468970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 20468970 is about 4524.2645811225. The cubic root of 20468970 is about 273.5470253700.

The spelling of 20468970 in words is "twenty million, four hundred sixty-eight thousand, nine hundred seventy".