20346612 has 96 divisors (see below), whose sum is σ = 56899584. Its totient is φ = 5577600.

The previous prime is 20346607. The next prime is 20346617. The reversal of 20346612 is 21664302.

It is an interprime number because it is at equal distance from previous prime (20346607) and next prime (20346617).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121753 + ... + 121919.

It is an arithmetic number, because the mean of its divisors is an integer number (592704).

Almost surely, 2^20346612 is an apocalyptic number.

20346612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20346612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28449792).

20346612 is an abundant number, since it is smaller than the sum of its proper divisors (36552972).

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

20346612 is a wasteful number, since it uses less digits than its factorization.

20346612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20346612 is about 4510.7218934446. The cubic root of 20346612 is about 273.0008721409. Note that the first 3 decimals are identical.

It can be divided in two parts, 2034 and 6612, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 20346612 in words is "twenty million, three hundred forty-six thousand, six hundred twelve".