7426642 has 8 divisors (see below), whose sum is σ = 11188476. Its totient is φ = 3697152.

The previous prime is 7426621. The next prime is 7426649. The reversal of 7426642 is 2466247.

It can be written as a sum of positive squares in 2 ways, for example, as 7403841 + 22801 = 2721^2 + 151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7426642² = 110310022792328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7426649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7503 + ... + 8434.

Almost surely, 2^7426642 is an apocalyptic number.

7426642 is a deficient number, since it is larger than the sum of its proper divisors (3761834).

7426642 is a wasteful number, since it uses less digits than its factorization.

7426642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16172.

The product of its digits is 16128, while the sum is 31.

The square root of 7426642 is about 2725.1865991157. The cubic root of 7426642 is about 195.1030969183.

The spelling of 7426642 in words is "seven million, four hundred twenty-six thousand, six hundred forty-two".