72442 has 8 divisors (see below), whose sum is σ = 112500. Its totient is φ = 34944.

The previous prime is 72431. The next prime is 72461. The reversal of 72442 is 24427.

It can be written as a sum of positive squares in 2 ways, for example, as 72361 + 81 = 269^2 + 9^2 .

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, 567 + ... + 682.

2⁷²⁴⁴² is an apocalyptic number.

72442 is a deficient number, since it is larger than the sum of its proper divisors (40058).

72442 is a wasteful number, since it uses less digits than its factorization.

72442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280.

The product of its digits is 448, while the sum is 19.

The square root of 72442 is about 269.1505155113. The cubic root of 72442 is about 41.6866322093.

Adding to 72442 its reverse (24427), we get a palindrome (96869).

The spelling of 72442 in words is "seventy-two thousand, four hundred forty-two", and thus it is an iban number.