17940070 has 8 divisors (see below), whose sum is σ = 32292144. Its totient is φ = 7176024.

The previous prime is 17940059. The next prime is 17940107. The reversal of 17940070 is 7004971.

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

It is a super-2 number, since 2×17940070² = 643692223209800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896994 + ... + 897013.

It is an arithmetic number, because the mean of its divisors is an integer number (4036518).

Almost surely, 2^17940070 is an apocalyptic number.

17940070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17940070 is a deficient number, since it is larger than the sum of its proper divisors (14352074).

17940070 is a wasteful number, since it uses less digits than its factorization.

17940070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794014.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 17940070 is about 4235.5719802643. The cubic root of 17940070 is about 261.7829622662.

The spelling of 17940070 in words is "seventeen million, nine hundred forty thousand, seventy".