18234632 has 16 divisors (see below), whose sum is σ = 36820140. Its totient is φ = 8415936.

The previous prime is 18234631. The next prime is 18234691. The reversal of 18234632 is 23643281.

It can be written as a sum of positive squares in 2 ways, for example, as 18028516 + 206116 = 4246^2 + 454^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18234595 and 18234604.

It is not an unprimeable number, because it can be changed into a prime (18234631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87563 + ... + 87770.

Almost surely, 2^18234632 is an apocalyptic number.

It is an amenable number.

18234632 is an abundant number, since it is smaller than the sum of its proper divisors (18585508).

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

18234632 is a wasteful number, since it uses less digits than its factorization.

18234632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175352 (or 175348 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 18234632 is about 4270.2028054883. The cubic root of 18234632 is about 263.2079489967.

The spelling of 18234632 in words is "eighteen million, two hundred thirty-four thousand, six hundred thirty-two".