20732670 has 48 divisors (see below), whose sum is σ = 61607520. Its totient is φ = 4738752.

The previous prime is 20732627. The next prime is 20732689. The reversal of 20732670 is 7623702.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15825 + ... + 17084.

It is an arithmetic number, because the mean of its divisors is an integer number (1283490).

Almost surely, 2^20732670 is an apocalyptic number.

20732670 is an abundant number, since it is smaller than the sum of its proper divisors (40874850).

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

20732670 is a wasteful number, since it uses less digits than its factorization.

20732670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32929 (or 32926 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 20732670 is about 4553.3141776073. The cubic root of 20732670 is about 274.7167110272.

The spelling of 20732670 in words is "twenty million, seven hundred thirty-two thousand, six hundred seventy".