7543842 has 8 divisors (see below), whose sum is σ = 15087696. Its totient is φ = 2514612.

The previous prime is 7543831. The next prime is 7543843. The reversal of 7543842 is 2483457.

It is a sphenic number, since it is the product of 3 distinct primes.

7543842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (7543843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628648 + ... + 628659.

It is an arithmetic number, because the mean of its divisors is an integer number (1885962).

Almost surely, 2^7543842 is an apocalyptic number.

7543842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7543842 is a wasteful number, since it uses less digits than its factorization.

7543842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257312.

The product of its digits is 26880, while the sum is 33.

The square root of 7543842 is about 2746.6055413910. The cubic root of 7543842 is about 196.1240537724.

It can be divided in two parts, 7543 and 842, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 7543842 in words is "seven million, five hundred forty-three thousand, eight hundred forty-two".