18061370 has 8 divisors (see below), whose sum is σ = 32510484. Its totient is φ = 7224544.

The previous prime is 18061367. The next prime is 18061427. The reversal of 18061370 is 7316081.

It can be written as a sum of positive squares in 2 ways, for example, as 16104169 + 1957201 = 4013^2 + 1399^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903059 + ... + 903078.

Almost surely, 2^18061370 is an apocalyptic number.

18061370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18061370 is a deficient number, since it is larger than the sum of its proper divisors (14449114).

18061370 is a wasteful number, since it uses less digits than its factorization.

18061370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806144.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 18061370 is about 4249.8670567442. The cubic root of 18061370 is about 262.3716439744.

The spelling of 18061370 in words is "eighteen million, sixty-one thousand, three hundred seventy".