7210042 has 32 divisors (see below), whose sum is σ = 13132800. Its totient is φ = 2903040.

The previous prime is 7210037. The next prime is 7210043. The reversal of 7210042 is 2400127.

It is a junction number, because it is equal to n+sod(n) for n = 7209998 and 7210025.

It is not an unprimeable number, because it can be changed into a prime (7210043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15834 + ... + 16282.

It is an arithmetic number, because the mean of its divisors is an integer number (410400).

Almost surely, 2^7210042 is an apocalyptic number.

7210042 is a deficient number, since it is larger than the sum of its proper divisors (5922758).

7210042 is a wasteful number, since it uses less digits than its factorization.

7210042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 7210042 is about 2685.1521372168. The cubic root of 7210042 is about 193.1876078508.

Adding to 7210042 its reverse (2400127), we get a palindrome (9610169).

The spelling of 7210042 in words is "seven million, two hundred ten thousand, forty-two".