574638438 has 48 divisors (see below), whose sum is σ = 1270524528. Its totient is φ = 173131200.

The previous prime is 574638433. The next prime is 574638457. The reversal of 574638438 is 834836475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (574638433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129220 + ... + 133592.

It is an arithmetic number, because the mean of its divisors is an integer number (26469261).

Almost surely, 2^574638438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 574638438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635262264).

574638438 is an abundant number, since it is smaller than the sum of its proper divisors (695886090).

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

574638438 is a wasteful number, since it uses less digits than its factorization.

574638438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581 (or 4570 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 48.

The square root of 574638438 is about 23971.6173421820. The cubic root of 574638438 is about 831.3774186646.

The spelling of 574638438 in words is "five hundred seventy-four million, six hundred thirty-eight thousand, four hundred thirty-eight".