814440922 has 4 divisors (see below), whose sum is σ = 1221661386. Its totient is φ = 407220460.

The previous prime is 814440917. The next prime is 814440937. The reversal of 814440922 is 229044418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 229044418 = 2 ⋅114522209.

It can be written as a sum of positive squares in only one way, i.e., 796876441 + 17564481 = 28229^2 + 4191^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203610229 + ... + 203610232.

Almost surely, 2^814440922 is an apocalyptic number.

814440922 is a deficient number, since it is larger than the sum of its proper divisors (407220464).

814440922 is a wasteful number, since it uses less digits than its factorization.

814440922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407220463.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 814440922 is about 28538.4113433106. The cubic root of 814440922 is about 933.8702253103.

The spelling of 814440922 in words is "eight hundred fourteen million, four hundred forty thousand, nine hundred twenty-two".