7949142 has 12 divisors (see below), whose sum is σ = 17223180. Its totient is φ = 2649708.

The previous prime is 7949141. The next prime is 7949143. The reversal of 7949142 is 2419497.

It is an interprime number because it is at equal distance from previous prime (7949141) and next prime (7949143).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7949097 and 7949106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7949141) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 220792 + ... + 220827.

It is an arithmetic number, because the mean of its divisors is an integer number (1435265).

Almost surely, 2^7949142 is an apocalyptic number.

7949142 is an abundant number, since it is smaller than the sum of its proper divisors (9274038).

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

7949142 is a wasteful number, since it uses less digits than its factorization.

7949142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441627 (or 441624 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 7949142 is about 2819.4222812484. The cubic root of 7949142 is about 199.5752820451.

The spelling of 7949142 in words is "seven million, nine hundred forty-nine thousand, one hundred forty-two".