4145538 has 16 divisors (see below), whose sum is σ = 8316576. Its totient is φ = 1377600.

The previous prime is 4145527. The next prime is 4145539. The reversal of 4145538 is 8355414.

It is not an unprimeable number, because it can be changed into a prime (4145539) 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, 1545 + ... + 3267.

It is an arithmetic number, because the mean of its divisors is an integer number (519786).

Almost surely, 2^4145538 is an apocalyptic number.

4145538 is an abundant number, since it is smaller than the sum of its proper divisors (4171038).

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

4145538 is a wasteful number, since it uses less digits than its factorization.

4145538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129.

The product of its digits is 9600, while the sum is 30.

The square root of 4145538 is about 2036.0594293881. The cubic root of 4145538 is about 160.6424430077.

The spelling of 4145538 in words is "four million, one hundred forty-five thousand, five hundred thirty-eight".