4542144 has 56 divisors (see below), whose sum is σ = 12332208. Its totient is φ = 1474560.

The previous prime is 4542143. The next prime is 4542149. The reversal of 4542144 is 4412454.

4542144 = T₂₉₁ + T₂₉₂ + ... + T₃₇₂.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4542143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7584 + ... + 8160.

It is an arithmetic number, because the mean of its divisors is an integer number (220218).

Almost surely, 2^4542144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4542144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6166104).

4542144 is an abundant number, since it is smaller than the sum of its proper divisors (7790064).

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

4542144 is a wasteful number, since it uses less digits than its factorization.

4542144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633 (or 623 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 4542144 is about 2131.2306304105. The cubic root of 4542144 is about 165.6101559736.

Adding to 4542144 its reverse (4412454), we get a palindrome (8954598).

The spelling of 4542144 in words is "four million, five hundred forty-two thousand, one hundred forty-four".