7042408 has 8 divisors (see below), whose sum is σ = 13204530. Its totient is φ = 3521200.

The previous prime is 7042391. The next prime is 7042421. The reversal of 7042408 is 8042407.

It can be written as a sum of positive squares in only one way, i.e., 6461764 + 580644 = 2542^2 + 762^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 440143 + ... + 440158.

Almost surely, 2^7042408 is an apocalyptic number.

It is an amenable number.

7042408 is a deficient number, since it is larger than the sum of its proper divisors (6162122).

7042408 is a wasteful number, since it uses less digits than its factorization.

7042408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880307 (or 880303 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 7042408 is about 2653.7535680617. The cubic root of 7042408 is about 191.6786435700.

Subtracting 7042408 from its reverse (8042407), we obtain a palindrome (999999).

The spelling of 7042408 in words is "seven million, forty-two thousand, four hundred eight".