18070070 has 16 divisors (see below), whose sum is σ = 32624640. Its totient is φ = 7206144.

The previous prime is 18070069. The next prime is 18070081. The reversal of 18070070 is 7007081.

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 7 ways as a sum of consecutive naturals, for example, 971 + ... + 6089.

It is an arithmetic number, because the mean of its divisors is an integer number (2039040).

Almost surely, 2^18070070 is an apocalyptic number.

18070070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18070070 is a deficient number, since it is larger than the sum of its proper divisors (14554570).

18070070 is a wasteful number, since it uses less digits than its factorization.

18070070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5479.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 18070070 is about 4250.8904949434. The cubic root of 18070070 is about 262.4137645683.

The spelling of 18070070 in words is "eighteen million, seventy thousand, seventy".