20713302 has 12 divisors (see below), whose sum is σ = 44878860. Its totient is φ = 6904428.

The previous prime is 20713291. The next prime is 20713309. The reversal of 20713302 is 20331702.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1150739 = 20713302 / (2 + 0 + 7 + 1 + 3 + 3 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20713309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 575352 + ... + 575387.

It is an arithmetic number, because the mean of its divisors is an integer number (3739905).

Almost surely, 2^20713302 is an apocalyptic number.

20713302 is an abundant number, since it is smaller than the sum of its proper divisors (24165558).

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

20713302 is a wasteful number, since it uses less digits than its factorization.

20713302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150747 (or 1150744 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 20713302 is about 4551.1868781671. The cubic root of 20713302 is about 274.6311396247.

The spelling of 20713302 in words is "twenty million, seven hundred thirteen thousand, three hundred two".