20732612 has 6 divisors (see below), whose sum is σ = 36282078. Its totient is φ = 10366304.

The previous prime is 20732611. The next prime is 20732627. The reversal of 20732612 is 21623702.

It can be written as a sum of positive squares in only one way, i.e., 18524416 + 2208196 = 4304^2 + 1486^2 .

It is not an unprimeable number, because it can be changed into a prime (20732611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2591573 + ... + 2591580.

It is an arithmetic number, because the mean of its divisors is an integer number (6047013).

Almost surely, 2^20732612 is an apocalyptic number.

It is an amenable number.

20732612 is a deficient number, since it is larger than the sum of its proper divisors (15549466).

20732612 is a wasteful number, since it uses less digits than its factorization.

20732612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183157 (or 5183155 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20732612 is about 4553.3078086156. The cubic root of 20732612 is about 274.7164548521.

The spelling of 20732612 in words is "twenty million, seven hundred thirty-two thousand, six hundred twelve".