18070580 has 24 divisors (see below), whose sum is σ = 41398560. Its totient is φ = 6571040.

The previous prime is 18070573. The next prime is 18070589. The reversal of 18070580 is 8507081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18070589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40850 + ... + 41289.

It is an arithmetic number, because the mean of its divisors is an integer number (1724940).

Almost surely, 2^18070580 is an apocalyptic number.

18070580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18070580 is an abundant number, since it is smaller than the sum of its proper divisors (23327980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18070580 is a wasteful number, since it uses less digits than its factorization.

18070580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82159 (or 82157 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 18070580 is about 4250.9504819511. The cubic root of 18070580 is about 262.4162332871.

The spelling of 18070580 in words is "eighteen million, seventy thousand, five hundred eighty".