4538144 has 24 divisors (see below), whose sum is σ = 9622620. Its totient is φ = 2094336.

The previous prime is 4538143. The next prime is 4538147. The reversal of 4538144 is 4418354.

It can be written as a sum of positive squares in 2 ways, for example, as 4048144 + 490000 = 2012^2 + 700^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4538143) 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, 5039 + ... + 5870.

Almost surely, 2^4538144 is an apocalyptic number.

It is an amenable number.

4538144 is an abundant number, since it is smaller than the sum of its proper divisors (5084476).

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

4538144 is a wasteful number, since it uses less digits than its factorization.

4538144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10932 (or 10924 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 4538144 is about 2130.2919987645. The cubic root of 4538144 is about 165.5615273100.

The spelling of 4538144 in words is "four million, five hundred thirty-eight thousand, one hundred forty-four".