7642402 has 8 divisors (see below), whose sum is σ = 11497500. Its totient is φ = 3809904.

The previous prime is 7642373. The next prime is 7642403. The reversal of 7642402 is 2042467.

It can be written as a sum of positive squares in 2 ways, for example, as 7458361 + 184041 = 2731^2 + 429^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7642403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4777 + ... + 6172.

Almost surely, 2^7642402 is an apocalyptic number.

7642402 is a deficient number, since it is larger than the sum of its proper divisors (3855098).

7642402 is a wasteful number, since it uses less digits than its factorization.

7642402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11300.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 7642402 is about 2764.4894646209. The cubic root of 7642402 is about 196.9744785580.

Adding to 7642402 its reverse (2042467), we get a palindrome (9684869).

The spelling of 7642402 in words is "seven million, six hundred forty-two thousand, four hundred two".