21014314040 has 64 divisors (see below), whose sum is σ = 50081587200. Its totient is φ = 7908415488.

The previous prime is 21014314033. The next prime is 21014314099. The reversal of 21014314040 is 4041341012.

It is a super-2 number, since 2×21014314040² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3477902 + ... + 3483938.

It is an arithmetic number, because the mean of its divisors is an integer number (782524800).

Almost surely, 2^21014314040 is an apocalyptic number.

21014314040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21014314040 is an abundant number, since it is smaller than the sum of its proper divisors (29067273160).

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

21014314040 is a wasteful number, since it uses less digits than its factorization.

21014314040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11184 (or 11180 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21014314040 its reverse (4041341012), we get a palindrome (25055655052).

The spelling of 21014314040 in words is "twenty-one billion, fourteen million, three hundred fourteen thousand, forty".