18495970 has 16 divisors (see below), whose sum is σ = 33369408. Its totient is φ = 7381360.

The previous prime is 18495947. The next prime is 18495973. The reversal of 18495970 is 7959481.

It is not an unprimeable number, because it can be changed into a prime (18495973) 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, 3027 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (2085588).

Almost surely, 2^18495970 is an apocalyptic number.

18495970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18495970 is a deficient number, since it is larger than the sum of its proper divisors (14873438).

18495970 is a wasteful number, since it uses less digits than its factorization.

18495970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 18495970 is about 4300.6941300213. The cubic root of 18495970 is about 264.4594177562.

The spelling of 18495970 in words is "eighteen million, four hundred ninety-five thousand, nine hundred seventy".