21014604306 has 32 divisors (see below), whose sum is σ = 47490638400. Its totient is φ = 6886140480.

The previous prime is 21014604301. The next prime is 21014604313. The reversal of 21014604306 is 60340641012.

21014604306 is a `hidden beast` number, since 2 + 10 + 14 + 604 + 30 + 6 = 666.

It is a super-2 number, since 2×21014604306² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 21014604306.

It is not an unprimeable number, because it can be changed into a prime (21014604301) 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, 3294775 + ... + 3301146.

It is an arithmetic number, because the mean of its divisors is an integer number (1484082450).

Almost surely, 2^21014604306 is an apocalyptic number.

21014604306 is an abundant number, since it is smaller than the sum of its proper divisors (26476034094).

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

21014604306 is a wasteful number, since it uses less digits than its factorization.

21014604306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595991 (or 6595985 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The spelling of 21014604306 in words is "twenty-one billion, fourteen million, six hundred four thousand, three hundred six".