814389242 has 4 divisors (see below), whose sum is σ = 1221583866. Its totient is φ = 407194620.

The previous prime is 814389227. The next prime is 814389253. The reversal of 814389242 is 242983418.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 632975281 + 181413961 = 25159^2 + 13469^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 814389242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203597309 + ... + 203597312.

Almost surely, 2^814389242 is an apocalyptic number.

814389242 is a deficient number, since it is larger than the sum of its proper divisors (407194624).

814389242 is a wasteful number, since it uses less digits than its factorization.

814389242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407194623.

The product of its digits is 110592, while the sum is 41.

The square root of 814389242 is about 28537.5058826100. The cubic root of 814389242 is about 933.8504721141.

The spelling of 814389242 in words is "eight hundred fourteen million, three hundred eighty-nine thousand, two hundred forty-two".