20626460400 has 960 divisors, whose sum is σ = 88530333696. Its totient is φ = 3981312000.

The previous prime is 20626460369. The next prime is 20626460429. The reversal of 20626460400 is 406462602.

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, 76112265 + ... + 76112535.

Almost surely, 2^20626460400 is an apocalyptic number.

20626460400 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 20626460400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44265166848).

20626460400 is an abundant number, since it is smaller than the sum of its proper divisors (67903873296).

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

20626460400 is a wasteful number, since it uses less digits than its factorization.

20626460400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 20626460400 in words is "twenty billion, six hundred twenty-six million, four hundred sixty thousand, four hundred".