7442378 has 12 divisors (see below), whose sum is σ = 11366610. Its totient is φ = 3654696.

The previous prime is 7442377. The next prime is 7442381. The reversal of 7442378 is 8732447.

It can be written as a sum of positive squares in only one way, i.e., 6436369 + 1006009 = 2537^2 + 1003^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7442371) 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, 6428 + ... + 7496.

Almost surely, 2^7442378 is an apocalyptic number.

7442378 is a deficient number, since it is larger than the sum of its proper divisors (3924232).

7442378 is a wasteful number, since it uses less digits than its factorization.

7442378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189 (or 1130 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 7442378 is about 2728.0722131205. The cubic root of 7442378 is about 195.2407982950.

The spelling of 7442378 in words is "seven million, four hundred forty-two thousand, three hundred seventy-eight".