20233912 has 8 divisors (see below), whose sum is σ = 37938600. Its totient is φ = 10116952.

The previous prime is 20233903. The next prime is 20233919. The reversal of 20233912 is 21933202.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×20233912² = 818822389647488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264612 + ... + 1264627.

It is an arithmetic number, because the mean of its divisors is an integer number (4742325).

Almost surely, 2^20233912 is an apocalyptic number.

It is an amenable number.

20233912 is a deficient number, since it is larger than the sum of its proper divisors (17704688).

20233912 is a wasteful number, since it uses less digits than its factorization.

20233912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2529245 (or 2529241 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 20233912 is about 4498.2120892639. The cubic root of 20233912 is about 272.4958874895.

The spelling of 20233912 in words is "twenty million, two hundred thirty-three thousand, nine hundred twelve".