7399442 has 4 divisors (see below), whose sum is σ = 11099166. Its totient is φ = 3699720.

The previous prime is 7399439. The next prime is 7399459. The reversal of 7399442 is 2449937.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6661561 + 737881 = 2581^2 + 859^2 .

It is a super-2 number, since 2×7399442² = 109503483822728, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7³ + 3¹⁰ + 9 + 9 + 4¹⁰ + 4¹¹ + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 7399396 and 7399405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1849859 + ... + 1849862.

Almost surely, 2^7399442 is an apocalyptic number.

7399442 is a deficient number, since it is larger than the sum of its proper divisors (3699724).

7399442 is a wasteful number, since it uses less digits than its factorization.

7399442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699723.

The product of its digits is 54432, while the sum is 38.

The square root of 7399442 is about 2720.1915373738. The cubic root of 7399442 is about 194.8646178427.

The spelling of 7399442 in words is "seven million, three hundred ninety-nine thousand, four hundred forty-two".