20349882460 has 12 divisors (see below), whose sum is σ = 42734753208. Its totient is φ = 8139952976.

The previous prime is 20349882439. The next prime is 20349882461. The reversal of 20349882460 is 6428894302.

It is a super-2 number, since 2×20349882460² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20349882460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20349882461) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 508747042 + ... + 508747081.

It is an arithmetic number, because the mean of its divisors is an integer number (3561229434).

Almost surely, 2^20349882460 is an apocalyptic number.

20349882460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20349882460 is an abundant number, since it is smaller than the sum of its proper divisors (22384870748).

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

20349882460 is a wasteful number, since it uses less digits than its factorization.

20349882460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017494132 (or 1017494130 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 20349882460 in words is "twenty billion, three hundred forty-nine million, eight hundred eighty-two thousand, four hundred sixty".