7478042 has 24 divisors (see below), whose sum is σ = 13283508. Its totient is φ = 3136320.

The previous prime is 7478017. The next prime is 7478069. The reversal of 7478042 is 2408747.

It can be written as a sum of positive squares in 2 ways, for example, as 7027801 + 450241 = 2651^2 + 671^2 .

It is a super-2 number, since 2×7478042² = 111842224307528, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1958 + ... + 4334.

Almost surely, 2^7478042 is an apocalyptic number.

7478042 is a deficient number, since it is larger than the sum of its proper divisors (5805466).

7478042 is a wasteful number, since it uses less digits than its factorization.

7478042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 7478042 is about 2734.6008849556. The cubic root of 7478042 is about 195.5521671867.

The spelling of 7478042 in words is "seven million, four hundred seventy-eight thousand, forty-two".