20294851600 has 135 divisors (see below), whose sum is σ = 51919146487. Its totient is φ = 7622179840.

The previous prime is 20294851597. The next prime is 20294851607. The reversal of 20294851600 is 615849202.

The square root of 20294851600 is 142460.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 474716944 + 19820134656 = 21788^2 + 140784^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20294851600.

It is not an unprimeable number, because it can be changed into a prime (20294851607) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 48436191 + ... + 48436609.

Almost surely, 2^20294851600 is an apocalyptic number.

20294851600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

20294851600 is the 142460-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20294851600

20294851600 is an abundant number, since it is smaller than the sum of its proper divisors (31624294887).

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

20294851600 is an equidigital number, since it uses as much as digits as its factorization.

20294851600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 20294851600 in words is "twenty billion, two hundred ninety-four million, eight hundred fifty-one thousand, six hundred".