6731442 has 12 divisors (see below), whose sum is σ = 14584830. Its totient is φ = 2243808.

The previous prime is 6731437. The next prime is 6731449. The reversal of 6731442 is 2441376.

It can be written as a sum of positive squares in only one way, i.e., 6155361 + 576081 = 2481^2 + 759^2 .

It is a super-2 number, since 2×6731442² = 90624622798728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6731449) 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, 186967 + ... + 187002.

Almost surely, 2^6731442 is an apocalyptic number.

6731442 is an abundant number, since it is smaller than the sum of its proper divisors (7853388).

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

6731442 is a wasteful number, since it uses less digits than its factorization.

6731442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373977 (or 373974 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 6731442 is about 2594.5022644045. The cubic root of 6731442 is about 188.8148013688.

The spelling of 6731442 in words is "six million, seven hundred thirty-one thousand, four hundred forty-two".