7142942 has 4 divisors (see below), whose sum is σ = 10714416. Its totient is φ = 3571470.

The previous prime is 7142939. The next prime is 7142951. The reversal of 7142942 is 2492417.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×7142942³ (a number of 22 digits) contains 333 as substring.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1785734 + ... + 1785737.

It is an arithmetic number, because the mean of its divisors is an integer number (2678604).

Almost surely, 2^7142942 is an apocalyptic number.

7142942 is a deficient number, since it is larger than the sum of its proper divisors (3571474).

7142942 is a wasteful number, since it uses less digits than its factorization.

7142942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571473.

The product of its digits is 4032, while the sum is 29.

The square root of 7142942 is about 2672.6282943949. The cubic root of 7142942 is about 192.5864411917.

The spelling of 7142942 in words is "seven million, one hundred forty-two thousand, nine hundred forty-two".