20490670200 has 768 divisors, whose sum is σ = 86344473600. Its totient is φ = 3881779200.

The previous prime is 20490670181. The next prime is 20490670243. The reversal of 20490670200 is 207609402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 65465244 + ... + 65465556.

It is an arithmetic number, because the mean of its divisors is an integer number (112427700).

Almost surely, 2^20490670200 is an apocalyptic number.

20490670200 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 20490670200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43172236800).

20490670200 is an abundant number, since it is smaller than the sum of its proper divisors (65853803400).

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

20490670200 is a wasteful number, since it uses less digits than its factorization.

20490670200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 20490670200 in words is "twenty billion, four hundred ninety million, six hundred seventy thousand, two hundred".