18070458 has 32 divisors (see below), whose sum is σ = 42639360. Its totient is φ = 4996080.

The previous prime is 18070411. The next prime is 18070477. The reversal of 18070458 is 85407081.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5638 + ... + 8241.

It is an arithmetic number, because the mean of its divisors is an integer number (1332480).

Almost surely, 2^18070458 is an apocalyptic number.

18070458 is an abundant number, since it is smaller than the sum of its proper divisors (24568902).

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

18070458 is a wasteful number, since it uses less digits than its factorization.

18070458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13922.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 18070458 is about 4250.9361321949. The cubic root of 18070458 is about 262.4156427350.

It can be divided in two parts, 18070 and 458, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 18070458 in words is "eighteen million, seventy thousand, four hundred fifty-eight".