21300094740 has 48 divisors (see below), whose sum is σ = 60765562368. Its totient is φ = 5572854144.

The previous prime is 21300094729. The next prime is 21300094747. The reversal of 21300094740 is 4749000312.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 21300094698 and 21300094707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300094747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3345892 + ... + 3352251.

It is an arithmetic number, because the mean of its divisors is an integer number (1265949216).

Almost surely, 2^21300094740 is an apocalyptic number.

21300094740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21300094740 is an abundant number, since it is smaller than the sum of its proper divisors (39465467628).

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

21300094740 is a wasteful number, since it uses less digits than its factorization.

21300094740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6698208 (or 6698206 counting only the distinct ones).

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

The spelling of 21300094740 in words is "twenty-one billion, three hundred million, ninety-four thousand, seven hundred forty".