18470434 has 8 divisors (see below), whose sum is σ = 28160028. Its totient is φ = 9083760.

The previous prime is 18470423. The next prime is 18470467. The reversal of 18470434 is 43407481.

It can be written as a sum of positive squares in 2 ways, for example, as 18447025 + 23409 = 4295^2 + 153^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 18470396 and 18470405.

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, 75577 + ... + 75820.

Almost surely, 2^18470434 is an apocalyptic number.

18470434 is a deficient number, since it is larger than the sum of its proper divisors (9689594).

18470434 is a wasteful number, since it uses less digits than its factorization.

18470434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151460.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 18470434 is about 4297.7242815239. The cubic root of 18470434 is about 264.3376552683.

The spelling of 18470434 in words is "eighteen million, four hundred seventy thousand, four hundred thirty-four".