18072632 has 16 divisors (see below), whose sum is σ = 35879760. Its totient is φ = 8504704.

The previous prime is 18072569. The next prime is 18072661. The reversal of 18072632 is 23627081.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18072595 and 18072604.

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, 66308 + ... + 66579.

It is an arithmetic number, because the mean of its divisors is an integer number (2242485).

Almost surely, 2^18072632 is an apocalyptic number.

It is an amenable number.

18072632 is a deficient number, since it is larger than the sum of its proper divisors (17807128).

18072632 is a wasteful number, since it uses less digits than its factorization.

18072632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132910 (or 132906 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 18072632 is about 4251.1918328864. The cubic root of 18072632 is about 262.4261657801.

The spelling of 18072632 in words is "eighteen million, seventy-two thousand, six hundred thirty-two".