7120642 has 8 divisors (see below), whose sum is σ = 10702332. Its totient is φ = 3553200.

The previous prime is 7120621. The next prime is 7120657. The reversal of 7120642 is 2460217.

It can be written as a sum of positive squares in 2 ways, for example, as 6869641 + 251001 = 2621^2 + 501^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2209 + ... + 4372.

Almost surely, 2^7120642 is an apocalyptic number.

7120642 is a deficient number, since it is larger than the sum of its proper divisors (3581690).

7120642 is a wasteful number, since it uses less digits than its factorization.

7120642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 7120642 is about 2668.4531099497. The cubic root of 7120642 is about 192.3858163567.

Adding to 7120642 its reverse (2460217), we get a palindrome (9580859).

The spelling of 7120642 in words is "seven million, one hundred twenty thousand, six hundred forty-two".