7289442 has 12 divisors (see below), whose sum is σ = 15793830. Its totient is φ = 2429808.

The previous prime is 7289441. The next prime is 7289449. The reversal of 7289442 is 2449827.

It can be written as a sum of positive squares in only one way, i.e., 7241481 + 47961 = 2691^2 + 219^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7289397 and 7289406.

It is not an unprimeable number, because it can be changed into a prime (7289441) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 202467 + ... + 202502.

Almost surely, 2^7289442 is an apocalyptic number.

7289442 is an abundant number, since it is smaller than the sum of its proper divisors (8504388).

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

7289442 is a wasteful number, since it uses less digits than its factorization.

7289442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404977 (or 404974 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 7289442 is about 2699.8966646892. The cubic root of 7289442 is about 193.8941747562.

The spelling of 7289442 in words is "seven million, two hundred eighty-nine thousand, four hundred forty-two".