1385724468 has 48 divisors (see below), whose sum is σ = 3437005824. Its totient is φ = 433029120.

The previous prime is 1385724463. The next prime is 1385724491. The reversal of 1385724468 is 8644275831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385724463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39213 + ... + 65643.

It is an arithmetic number, because the mean of its divisors is an integer number (71604288).

Almost surely, 2^1385724468 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 1385724468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1718502912).

1385724468 is an abundant number, since it is smaller than the sum of its proper divisors (2051281356).

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

1385724468 is a wasteful number, since it uses less digits than its factorization.

1385724468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26712 (or 26710 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 1385724468 is about 37225.3202538272. The cubic root of 1385724468 is about 1114.8735920831.

The spelling of 1385724468 in words is "one billion, three hundred eighty-five million, seven hundred twenty-four thousand, four hundred sixty-eight".