1823321042 has 4 divisors (see below), whose sum is σ = 2734981566. Its totient is φ = 911660520.

The previous prime is 1823321041. The next prime is 1823321051. The reversal of 1823321042 is 2401233281.

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., 1647466921 + 175854121 = 40589^2 + 13261^2 .

It is not an unprimeable number, because it can be changed into a prime (1823321041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455830259 + ... + 455830262.

Almost surely, 2^1823321042 is an apocalyptic number.

1823321042 is a deficient number, since it is larger than the sum of its proper divisors (911660524).

1823321042 is an equidigital number, since it uses as much as digits as its factorization.

1823321042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911660523.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1823321042 is about 42700.3634879142. The cubic root of 1823321042 is about 1221.6713279847.

The spelling of 1823321042 in words is "one billion, eight hundred twenty-three million, three hundred twenty-one thousand, forty-two".