72422 has 12 divisors (see below), whose sum is σ = 126540. Its totient is φ = 30996.

The previous prime is 72421. The next prime is 72431. The reversal of 72422 is 22427.

72422 = T₂₈ + T₂₉ + ... + T₇₆.

It is a nialpdrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 72422.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 72422.

It is not an unprimeable number, because it can be changed into a prime (72421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 272 + ... + 467.

It is an arithmetic number, because the mean of its divisors is an integer number (10545).

2⁷²⁴²² is an apocalyptic number.

72422 is a deficient number, since it is larger than the sum of its proper divisors (54118).

72422 is a wasteful number, since it uses less digits than its factorization.

72422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755 (or 748 counting only the distinct ones).

The product of its digits is 224, while the sum is 17.

The square root of 72422 is about 269.1133590144. The cubic root of 72422 is about 41.6827955336.

Adding to 72422 its reverse (22427), we get a palindrome (94849).

It can be divided in two parts, 72 and 422, that added together give a palindrome (494).

The spelling of 72422 in words is "seventy-two thousand, four hundred twenty-two", and thus it is an iban number.