18642070 has 16 divisors (see below), whose sum is σ = 34713360. Its totient is φ = 7199584.

The previous prime is 18642037. The next prime is 18642101. The reversal of 18642070 is 7024681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31852 + ... + 32431.

It is an arithmetic number, because the mean of its divisors is an integer number (2169585).

Almost surely, 2^18642070 is an apocalyptic number.

18642070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18642070 is a deficient number, since it is larger than the sum of its proper divisors (16071290).

18642070 is a wasteful number, since it uses less digits than its factorization.

18642070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64319.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 18642070 is about 4317.6463495752. The cubic root of 18642070 is about 265.1539155704.

The spelling of 18642070 in words is "eighteen million, six hundred forty-two thousand, seventy".