20320152 has 16 divisors (see below), whose sum is σ = 50800440. Its totient is φ = 6773376.

The previous prime is 20320103. The next prime is 20320171. The reversal of 20320152 is 25102302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423313 + ... + 423360.

Almost surely, 2^20320152 is an apocalyptic number.

It is an amenable number.

20320152 is an abundant number, since it is smaller than the sum of its proper divisors (30480288).

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

20320152 is a wasteful number, since it uses less digits than its factorization.

20320152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846682 (or 846678 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20320152 is about 4507.7879275760. The cubic root of 20320152 is about 272.8824783648.

Adding to 20320152 its reverse (25102302), we get a palindrome (45422454).

The spelling of 20320152 in words is "twenty million, three hundred twenty thousand, one hundred fifty-two".