4542642 has 48 divisors (see below), whose sum is σ = 11007360. Its totient is φ = 1395792.

The previous prime is 4542631. The next prime is 4542697. The reversal of 4542642 is 2462454.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5959 + ... + 6677.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

Almost surely, 2^4542642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4542642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5503680).

4542642 is an abundant number, since it is smaller than the sum of its proper divisors (6464718).

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

4542642 is a wasteful number, since it uses less digits than its factorization.

4542642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 737 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 4542642 is about 2131.3474611147. The cubic root of 4542642 is about 165.6162082434.

It can be divided in two parts, 4542 and 642, that added together give a square (5184 = 72²).

The spelling of 4542642 in words is "four million, five hundred forty-two thousand, six hundred forty-two".