420442 has 16 divisors (see below), whose sum is σ = 712800. Its totient is φ = 184240.

The previous prime is 420439. The next prime is 420457. The reversal of 420442 is 244024.

420442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309 + ... + 967.

It is an arithmetic number, because the mean of its divisors is an integer number (44550).

2⁴²⁰⁴⁴² is an apocalyptic number.

420442 is a deficient number, since it is larger than the sum of its proper divisors (292358).

420442 is a wasteful number, since it uses less digits than its factorization.

420442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 420442 is about 648.4149905732. The cubic root of 420442 is about 74.9149851509.

Adding to 420442 its reverse (244024), we get a palindrome (664466).

The spelling of 420442 in words is "four hundred twenty thousand, four hundred forty-two", and thus it is an iban number.