423442 has 8 divisors (see below), whose sum is σ = 639036. Its totient is φ = 210432.

The previous prime is 423439. The next prime is 423457. The reversal of 423442 is 244324.

It can be written as a sum of positive squares in 2 ways, for example, as 398161 + 25281 = 631^2 + 159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163 + ... + 934.

2⁴²³⁴⁴² is an apocalyptic number.

423442 is a deficient number, since it is larger than the sum of its proper divisors (215594).

423442 is a wasteful number, since it uses less digits than its factorization.

423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292.

The product of its digits is 768, while the sum is 19.

The square root of 423442 is about 650.7242119362. The cubic root of 423442 is about 75.0927445247.

Adding to 423442 its reverse (244324), we get a palindrome (667766).

It can be divided in two parts, 423 and 442, that multiplied together give a triangular number (186966 = T₆₁₁).

The spelling of 423442 in words is "four hundred twenty-three thousand, four hundred forty-two", and thus it is an iban number.