91442 has 8 divisors (see below), whose sum is σ = 147756. Its totient is φ = 42192.

The previous prime is 91433. The next prime is 91453. The reversal of 91442 is 24419.

It can be written as a sum of positive squares in 2 ways, for example, as 90601 + 841 = 301^2 + 29^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 91442.

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, 1733 + ... + 1784.

2⁹¹⁴⁴² is an apocalyptic number.

91442 is a deficient number, since it is larger than the sum of its proper divisors (56314).

91442 is a wasteful number, since it uses less digits than its factorization.

91442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3532.

The product of its digits is 288, while the sum is 20.

The square root of 91442 is about 302.3937830049. The cubic root of 91442 is about 45.0521206785.

The spelling of 91442 in words is "ninety-one thousand, four hundred forty-two".