1814328988 has 12 divisors (see below), whose sum is σ = 3175549272. Its totient is φ = 907029200.

The previous prime is 1814328983. The next prime is 1814329009. The reversal of 1814328988 is 8898234181.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814328983) 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, 138 + ... + 60238.

It is an arithmetic number, because the mean of its divisors is an integer number (264629106).

Almost surely, 2^1814328988 is an apocalyptic number.

It is an amenable number.

1814328988 is a deficient number, since it is larger than the sum of its proper divisors (1361220284).

1814328988 is a wasteful number, since it uses less digits than its factorization.

1814328988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67652 (or 67650 counting only the distinct ones).

The product of its digits is 884736, while the sum is 52.

The square root of 1814328988 is about 42594.9408733009. The cubic root of 1814328988 is about 1219.6597160791.

The spelling of 1814328988 in words is "one billion, eight hundred fourteen million, three hundred twenty-eight thousand, nine hundred eighty-eight".