4385136 has 80 divisors (see below), whose sum is σ = 13395968. Its totient is φ = 1209600.

The previous prime is 4385131. The next prime is 4385137. The reversal of 4385136 is 6315834.

4385136 = 361² + 362² + ... + 391².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4385131) 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, 10206 + ... + 10626.

Almost surely, 2^4385136 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 4385136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6697984).

4385136 is an abundant number, since it is smaller than the sum of its proper divisors (9010832).

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

4385136 is a wasteful number, since it uses less digits than its factorization.

4385136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 464 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 4385136 is about 2094.0716320126. The cubic root of 4385136 is about 163.6795248661.

The spelling of 4385136 in words is "four million, three hundred eighty-five thousand, one hundred thirty-six".