2000021400740 has 24 divisors (see below), whose sum is σ = 4581867209472. Its totient is φ = 727280509280.

The previous prime is 2000021400737. The next prime is 2000021400841. The reversal of 2000021400740 is 470041200002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4545502964 + ... + 4545503403.

It is an arithmetic number, because the mean of its divisors is an integer number (190911133728).

Almost surely, 2^{2000021400740} is an apocalyptic number.

2000021400740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2000021400740 is an abundant number, since it is smaller than the sum of its proper divisors (2581845808732).

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

2000021400740 is a wasteful number, since it uses less digits than its factorization.

2000021400740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9091006387 (or 9091006385 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

Adding to 2000021400740 its reverse (470041200002), we get a palindrome (2470062600742).

The spelling of 2000021400740 in words is "two trillion, twenty-one million, four hundred thousand, seven hundred forty".