814388144 has 10 divisors (see below), whose sum is σ = 1577877060. Its totient is φ = 407194064.

The previous prime is 814388131. The next prime is 814388147. The reversal of 814388144 is 441883418.

It is not an unprimeable number, because it can be changed into a prime (814388147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25449614 + ... + 25449645.

It is an arithmetic number, because the mean of its divisors is an integer number (157787706).

Almost surely, 2^814388144 is an apocalyptic number.

It is an amenable number.

814388144 is a deficient number, since it is larger than the sum of its proper divisors (763488916).

814388144 is a wasteful number, since it uses less digits than its factorization.

814388144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50899267 (or 50899261 counting only the distinct ones).

The product of its digits is 98304, while the sum is 41.

The square root of 814388144 is about 28537.4866447625. The cubic root of 814388144 is about 933.8500524260.

The spelling of 814388144 in words is "eight hundred fourteen million, three hundred eighty-eight thousand, one hundred forty-four".