814243380 has 24 divisors (see below), whose sum is σ = 2279881632. Its totient is φ = 217131552.

The previous prime is 814243379. The next prime is 814243457. The reversal of 814243380 is 83342418.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6785302 + ... + 6785421.

It is an arithmetic number, because the mean of its divisors is an integer number (94995068).

Almost surely, 2^814243380 is an apocalyptic number.

It is an amenable number.

814243380 is an abundant number, since it is smaller than the sum of its proper divisors (1465638252).

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

814243380 is a wasteful number, since it uses less digits than its factorization.

814243380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13570735 (or 13570733 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 814243380 is about 28534.9501488964. The cubic root of 814243380 is about 933.7947160441.

Adding to 814243380 its reverse (83342418), we get a palindrome (897585798).

The spelling of 814243380 in words is "eight hundred fourteen million, two hundred forty-three thousand, three hundred eighty".