7189442 has 8 divisors (see below), whose sum is σ = 11613756. Its totient is φ = 3318192.

The previous prime is 7189439. The next prime is 7189459. The reversal of 7189442 is 2449817.

It can be written as a sum of positive squares in 2 ways, for example, as 7187761 + 1681 = 2681^2 + 41^2 .

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

It is a super-3 number, since 3×7189442³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138233 + ... + 138284.

Almost surely, 2^7189442 is an apocalyptic number.

7189442 is a deficient number, since it is larger than the sum of its proper divisors (4424314).

7189442 is a wasteful number, since it uses less digits than its factorization.

7189442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276532.

The product of its digits is 16128, while the sum is 35.

The square root of 7189442 is about 2681.3134840969. The cubic root of 7189442 is about 193.0034452211.

The spelling of 7189442 in words is "seven million, one hundred eighty-nine thousand, four hundred forty-two".