742542 has 8 divisors (see below), whose sum is σ = 1485096. Its totient is φ = 247512.

The previous prime is 742541. The next prime is 742549. The reversal of 742542 is 245247.

742542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

742542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742541) 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, 61873 + ... + 61884.

It is an arithmetic number, because the mean of its divisors is an integer number (185637).

2⁷⁴²⁵⁴² is an apocalyptic number.

742542 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.

742542 is a wasteful number, since it uses less digits than its factorization.

742542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123762.

The product of its digits is 2240, while the sum is 24.

The square root of 742542 is about 861.7087675079. The cubic root of 742542 is about 90.5538684006.

Adding to 742542 its reverse (245247), we get a palindrome (987789).

The spelling of 742542 in words is "seven hundred forty-two thousand, five hundred forty-two".