1898311434 has 8 divisors (see below), whose sum is σ = 3796622880. Its totient is φ = 632770476.

The previous prime is 1898311427. The next prime is 1898311453. The reversal of 1898311434 is 4341138981.

It is a happy number.

1898311434 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

1898311434 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158192614 + ... + 158192625.

It is an arithmetic number, because the mean of its divisors is an integer number (474577860).

Almost surely, 2^1898311434 is an apocalyptic number.

1898311434 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.

1898311434 is a wasteful number, since it uses less digits than its factorization.

1898311434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316385244.

The product of its digits is 82944, while the sum is 42.

The square root of 1898311434 is about 43569.6159496500. The cubic root of 1898311434 is about 1238.1953096129.

The spelling of 1898311434 in words is "one billion, eight hundred ninety-eight million, three hundred eleven thousand, four hundred thirty-four".