18769434 has 32 divisors (see below), whose sum is σ = 39234240. Its totient is φ = 5980032.

The previous prime is 18769433. The next prime is 18769453. The reversal of 18769434 is 43496781.

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 (18769433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12382 + ... + 13814.

It is an arithmetic number, because the mean of its divisors is an integer number (1226070).

Almost surely, 2^18769434 is an apocalyptic number.

18769434 is an abundant number, since it is smaller than the sum of its proper divisors (20464806).

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

18769434 is a wasteful number, since it uses less digits than its factorization.

18769434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534.

The product of its digits is 145152, while the sum is 42.

The square root of 18769434 is about 4332.3704827727. The cubic root of 18769434 is about 265.7563959655.

The spelling of 18769434 in words is "eighteen million, seven hundred sixty-nine thousand, four hundred thirty-four".