20469340926 has 64 divisors (see below), whose sum is σ = 48952848960. Its totient is φ = 6316462080.

The previous prime is 20469340921. The next prime is 20469340933. The reversal of 20469340926 is 62904396402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20469340921) 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 31 ways as a sum of consecutive naturals, for example, 126771 + ... + 238766.

It is an arithmetic number, because the mean of its divisors is an integer number (764888265).

Almost surely, 2^20469340926 is an apocalyptic number.

20469340926 is an abundant number, since it is smaller than the sum of its proper divisors (28483508034).

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

20469340926 is a wasteful number, since it uses less digits than its factorization.

20469340926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365626 (or 365620 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 20469340926 in words is "twenty billion, four hundred sixty-nine million, three hundred forty thousand, nine hundred twenty-six".