20332072 has 32 divisors (see below), whose sum is σ = 39398400. Its totient is φ = 9831744.

The previous prime is 20332043. The next prime is 20332079. The reversal of 20332072 is 27023302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20332079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33193 + ... + 33799.

It is an arithmetic number, because the mean of its divisors is an integer number (1231200).

Almost surely, 2^20332072 is an apocalyptic number.

It is an amenable number.

20332072 is a deficient number, since it is larger than the sum of its proper divisors (19066328).

20332072 is a wasteful number, since it uses less digits than its factorization.

20332072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 20332072 is about 4509.1098899894. The cubic root of 20332072 is about 272.9358264453.

Adding to 20332072 its reverse (27023302), we get a palindrome (47355374).

The spelling of 20332072 in words is "twenty million, three hundred thirty-two thousand, seventy-two".