18925034 has 4 divisors (see below), whose sum is σ = 28387554. Its totient is φ = 9462516.

The previous prime is 18924949. The next prime is 18925037. The reversal of 18925034 is 43052981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43052981 = 463 ⋅92987.

It can be written as a sum of positive squares in only one way, i.e., 18619225 + 305809 = 4315^2 + 553^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (18925037) by changing a digit.

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 as a sum of consecutive naturals, namely, 4731257 + ... + 4731260.

Almost surely, 2^18925034 is an apocalyptic number.

18925034 is a deficient number, since it is larger than the sum of its proper divisors (9462520).

18925034 is an equidigital number, since it uses as much as digits as its factorization.

18925034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9462519.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 18925034 is about 4350.2912546173. The cubic root of 18925034 is about 266.4887559834.

The spelling of 18925034 in words is "eighteen million, nine hundred twenty-five thousand, thirty-four".