20306376246 has 32 divisors (see below), whose sum is σ = 43965831168. Its totient is φ = 6215398560.

The previous prime is 20306376239. The next prime is 20306376247. The reversal of 20306376246 is 64267360302.

It is a super-2 number, since 2×20306376246² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20306376247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666616 + ... + 696411.

It is an arithmetic number, because the mean of its divisors is an integer number (1373932224).

Almost surely, 2^20306376246 is an apocalyptic number.

20306376246 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20306376246 is an abundant number, since it is smaller than the sum of its proper divisors (23659454922).

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

20306376246 is a wasteful number, since it uses less digits than its factorization.

20306376246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363236.

The product of its (nonzero) digits is 217728, while the sum is 39.

The spelling of 20306376246 in words is "twenty billion, three hundred six million, three hundred seventy-six thousand, two hundred forty-six".