4006385265 has 32 divisors (see below), whose sum is σ = 6616258560. Its totient is φ = 2069141184.

The previous prime is 4006385263. The next prime is 4006385287. The reversal of 4006385265 is 5625836004.

It is not a de Polignac number, because 4006385265 - 2¹ = 4006385263 is a prime.

It is a super-2 number, since 2×4006385265² = 32102245783218240450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4006385261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25512 + ... + 93078.

It is an arithmetic number, because the mean of its divisors is an integer number (206758080).

Almost surely, 2^4006385265 is an apocalyptic number.

It is an amenable number.

4006385265 is a deficient number, since it is larger than the sum of its proper divisors (2609873295).

4006385265 is a wasteful number, since it uses less digits than its factorization.

4006385265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67701.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 4006385265 is about 63296.0130260983. The cubic root of 4006385265 is about 1588.2452676139.

The spelling of 4006385265 in words is "four billion, six million, three hundred eighty-five thousand, two hundred sixty-five".