7040142 has 32 divisors (see below), whose sum is σ = 16567200. Its totient is φ = 2208384.

The previous prime is 7040129. The next prime is 7040171. The reversal of 7040142 is 2410407.

It is a happy number.

It is a super-3 number, since 3×7040142³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2917 + ... + 4752.

It is an arithmetic number, because the mean of its divisors is an integer number (517725).

Almost surely, 2^7040142 is an apocalyptic number.

7040142 is an abundant number, since it is smaller than the sum of its proper divisors (9527058).

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

7040142 is a wasteful number, since it uses less digits than its factorization.

7040142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7697 (or 7691 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 7040142 is about 2653.3265912812. The cubic root of 7040142 is about 191.6580828754.

Adding to 7040142 its reverse (2410407), we get a palindrome (9450549).

The spelling of 7040142 in words is "seven million, forty thousand, one hundred forty-two".