322440442 has 4 divisors (see below), whose sum is σ = 483660666. Its totient is φ = 161220220.

The previous prime is 322440439. The next prime is 322440509. The reversal of 322440442 is 244044223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244044223 = 131 ⋅1862933.

It can be written as a sum of positive squares in only one way, i.e., 321520761 + 919681 = 17931^2 + 959^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80610109 + ... + 80610112.

Almost surely, 2^322440442 is an apocalyptic number.

322440442 is a deficient number, since it is larger than the sum of its proper divisors (161220224).

322440442 is a wasteful number, since it uses less digits than its factorization.

322440442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161220223.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 322440442 is about 17956.6266876605. The cubic root of 322440442 is about 685.7247675440.

Adding to 322440442 its reverse (244044223), we get a palindrome (566484665).

The spelling of 322440442 in words is "three hundred twenty-two million, four hundred forty thousand, four hundred forty-two".