20964300 has 144 divisors (see below), whose sum is σ = 70828800. Its totient is φ = 4688640.

The previous prime is 20964287. The next prime is 20964331. The reversal of 20964300 is 346902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140626 + ... + 140774.

Almost surely, 2^20964300 is an apocalyptic number.

20964300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20964300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35414400).

20964300 is an abundant number, since it is smaller than the sum of its proper divisors (49864500).

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

20964300 is a wasteful number, since it uses less digits than its factorization.

20964300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20964300 is about 4578.6788487510. The cubic root of 20964300 is about 275.7359899256.

The spelling of 20964300 in words is "twenty million, nine hundred sixty-four thousand, three hundred".