422040 has 32 divisors (see below), whose sum is σ = 1266480. Its totient is φ = 112512.

The previous prime is 422029. The next prime is 422041. The reversal of 422040 is 40224.

422040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422041) by changing a digit.

422040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639 + ... + 1878.

2⁴²²⁰⁴⁰ is an apocalyptic number.

422040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422040 is an abundant number, since it is smaller than the sum of its proper divisors (844440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422040 is a wasteful number, since it uses less digits than its factorization.

422040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531 (or 3527 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 422040 is about 649.6460574805. The cubic root of 422040 is about 75.0097765033.

Adding to 422040 its reverse (40224), we get a palindrome (462264).

The spelling of 422040 in words is "four hundred twenty-two thousand, forty", and thus it is an iban number.