814442 has 4 divisors (see below), whose sum is σ = 1221666. Its totient is φ = 407220.

The previous prime is 814423. The next prime is 814447. The reversal of 814442 is 244418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244418 = 2 ⋅122209.

It can be written as a sum of positive squares in only one way, i.e., 808201 + 6241 = 899^2 + 79^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (814447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203609 + ... + 203612.

2⁸¹⁴⁴⁴² is an apocalyptic number.

814442 is a deficient number, since it is larger than the sum of its proper divisors (407224).

814442 is a wasteful number, since it uses less digits than its factorization.

814442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407223.

The product of its digits is 1024, while the sum is 23.

The square root of 814442 is about 902.4644037301. The cubic root of 814442 is about 93.3870637336.

The spelling of 814442 in words is "eight hundred fourteen thousand, four hundred forty-two".