1018831434 has 8 divisors (see below), whose sum is σ = 2037662880. Its totient is φ = 339610476.

The previous prime is 1018831421. The next prime is 1018831439. The reversal of 1018831434 is 4341388101.

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

1018831434 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1018831395 and 1018831404.

It is not an unprimeable number, because it can be changed into a prime (1018831439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84902614 + ... + 84902625.

It is an arithmetic number, because the mean of its divisors is an integer number (254707860).

Almost surely, 2^1018831434 is an apocalyptic number.

1018831434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1018831434 is a wasteful number, since it uses less digits than its factorization.

1018831434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169805244.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1018831434 is about 31919.1389921470. The cubic root of 1018831434 is about 1006.2381492425.

The spelling of 1018831434 in words is "one billion, eighteen million, eight hundred thirty-one thousand, four hundred thirty-four".