7823142 has 24 divisors (see below), whose sum is σ = 17579016. Its totient is φ = 2607552.

The previous prime is 7823141. The next prime is 7823143. The reversal of 7823142 is 2413287.

It is an interprime number because it is at equal distance from previous prime (7823141) and next prime (7823143).

It is a super-2 number, since 2×7823142² = 122403101504328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7823141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7563 + ... + 8534.

It is an arithmetic number, because the mean of its divisors is an integer number (732459).

Almost surely, 2^7823142 is an apocalyptic number.

7823142 is an abundant number, since it is smaller than the sum of its proper divisors (9755874).

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

7823142 is a wasteful number, since it uses less digits than its factorization.

7823142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16114 (or 16102 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 7823142 is about 2796.9880228560. The cubic root of 7823142 is about 198.5151872684.

It can be divided in two parts, 78 and 23142, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 7823142 in words is "seven million, eight hundred twenty-three thousand, one hundred forty-two".