7422530 has 8 divisors (see below), whose sum is σ = 13360572. Its totient is φ = 2969008.

The previous prime is 7422497. The next prime is 7422539. The reversal of 7422530 is 352247.

It can be written as a sum of positive squares in 2 ways, for example, as 6355441 + 1067089 = 2521^2 + 1033^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 7422496 and 7422505.

It is not an unprimeable number, because it can be changed into a prime (7422539) 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, 371117 + ... + 371136.

Almost surely, 2^7422530 is an apocalyptic number.

7422530 is a deficient number, since it is larger than the sum of its proper divisors (5938042).

7422530 is a wasteful number, since it uses less digits than its factorization.

7422530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742260.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 7422530 is about 2724.4320509053. The cubic root of 7422530 is about 195.0670818953.

Adding to 7422530 its reverse (352247), we get a palindrome (7774777).

The spelling of 7422530 in words is "seven million, four hundred twenty-two thousand, five hundred thirty".