7042530 has 32 divisors (see below), whose sum is σ = 18439488. Its totient is φ = 1707200.

The previous prime is 7042523. The next prime is 7042579. The reversal of 7042530 is 352407.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7042497 and 7042506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10341 + ... + 11000.

It is an arithmetic number, because the mean of its divisors is an integer number (576234).

Almost surely, 2^7042530 is an apocalyptic number.

7042530 is an abundant number, since it is smaller than the sum of its proper divisors (11396958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7042530 is a wasteful number, since it uses less digits than its factorization.

7042530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21362.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 7042530 is about 2653.7765542713. The cubic root of 7042530 is about 191.6797504196.

Adding to 7042530 its reverse (352407), we get a palindrome (7394937).

The spelling of 7042530 in words is "seven million, forty-two thousand, five hundred thirty".