7425742 has 4 divisors (see below), whose sum is σ = 11138616. Its totient is φ = 3712870.

The previous prime is 7425739. The next prime is 7425749. The reversal of 7425742 is 2475247.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7425749) 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 as a sum of consecutive naturals, namely, 1856434 + ... + 1856437.

It is an arithmetic number, because the mean of its divisors is an integer number (2784654).

Almost surely, 2^7425742 is an apocalyptic number.

7425742 is a deficient number, since it is larger than the sum of its proper divisors (3712874).

7425742 is a wasteful number, since it uses less digits than its factorization.

7425742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712873.

The product of its digits is 15680, while the sum is 31.

The square root of 7425742 is about 2725.0214678053. The cubic root of 7425742 is about 195.0952153894.

The spelling of 7425742 in words is "seven million, four hundred twenty-five thousand, seven hundred forty-two".