18070245 has 24 divisors (see below), whose sum is σ = 32171256. Its totient is φ = 9376128.

The previous prime is 18070187. The next prime is 18070253. The reversal of 18070245 is 54207081.

It can be written as a sum of positive squares in 4 ways, for example, as 5239521 + 12830724 = 2289^2 + 3582^2 .

It is a de Polignac number, because none of the positive numbers 2^k-18070245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3762 + ... + 7091.

It is an arithmetic number, because the mean of its divisors is an integer number (1340469).

Almost surely, 2^18070245 is an apocalyptic number.

18070245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18070245 is a deficient number, since it is larger than the sum of its proper divisors (14101011).

18070245 is a wasteful number, since it uses less digits than its factorization.

18070245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10901 (or 10898 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 18070245 is about 4250.9110788159. The cubic root of 18070245 is about 262.4146116829.

The spelling of 18070245 in words is "eighteen million, seventy thousand, two hundred forty-five".