4064895540 has 36 divisors (see below), whose sum is σ = 12330183684. Its totient is φ = 1083972096.

The previous prime is 4064895539. The next prime is 4064895557. The reversal of 4064895540 is 455984604.

4064895540 is a `hidden beast` number, since 40 + 64 + 8 + 9 + 5 + 540 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1039675536 + 3025220004 = 32244^2 + 55002^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×4064895540² = 33046751502223783200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11291197 + ... + 11291556.

Almost surely, 2^4064895540 is an apocalyptic number.

It is an amenable number.

4064895540 is an abundant number, since it is smaller than the sum of its proper divisors (8265288144).

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

4064895540 is a wasteful number, since it uses less digits than its factorization.

4064895540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22582768 (or 22582763 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 4064895540 is about 63756.5333122810. The cubic root of 4064895540 is about 1595.9396447676.

The spelling of 4064895540 in words is "four billion, sixty-four million, eight hundred ninety-five thousand, five hundred forty".