18162070 has 8 divisors (see below), whose sum is σ = 32691744. Its totient is φ = 7264824.

The previous prime is 18162061. The next prime is 18162071. The reversal of 18162070 is 7026181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18162071) 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, 908094 + ... + 908113.

It is an arithmetic number, because the mean of its divisors is an integer number (4086468).

Almost surely, 2^18162070 is an apocalyptic number.

18162070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18162070 is a deficient number, since it is larger than the sum of its proper divisors (14529674).

18162070 is a wasteful number, since it uses less digits than its factorization.

18162070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816214.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 18162070 is about 4261.6980183960. The cubic root of 18162070 is about 262.8583525971.

The spelling of 18162070 in words is "eighteen million, one hundred sixty-two thousand, seventy".