7142330 has 16 divisors (see below), whose sum is σ = 13845384. Its totient is φ = 2637120.

The previous prime is 7142321. The next prime is 7142341. The reversal of 7142330 is 332417.

It can be written as a sum of positive squares in 4 ways, for example, as 5612161 + 1530169 = 2369^2 + 1237^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27341 + ... + 27600.

Almost surely, 2^7142330 is an apocalyptic number.

7142330 is a deficient number, since it is larger than the sum of its proper divisors (6703054).

7142330 is a wasteful number, since it uses less digits than its factorization.

7142330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54961.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 7142330 is about 2672.5137979064. The cubic root of 7142330 is about 192.5809408312.

Subtracting from 7142330 its sum of digits (20), we obtain a triangular number (7142310 = T₃₇₇₉).

Adding to 7142330 its reverse (332417), we get a palindrome (7474747).

The spelling of 7142330 in words is "seven million, one hundred forty-two thousand, three hundred thirty".