20155332 has 24 divisors (see below), whose sum is σ = 48547072. Its totient is φ = 6501600.

The previous prime is 20155327. The next prime is 20155357. The reversal of 20155332 is 23355102.

It is a junction number, because it is equal to n+sod(n) for n = 20155299 and 20155308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26719 + ... + 27462.

Almost surely, 2^20155332 is an apocalyptic number.

It is an amenable number.

20155332 is an abundant number, since it is smaller than the sum of its proper divisors (28391740).

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

20155332 is a wasteful number, since it uses less digits than its factorization.

20155332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54219 (or 54217 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 20155332 is about 4489.4690109188. The cubic root of 20155332 is about 272.1426767322.

The spelling of 20155332 in words is "twenty million, one hundred fifty-five thousand, three hundred thirty-two".