4011564 has 12 divisors (see below), whose sum is σ = 9360344. Its totient is φ = 1337184.

The previous prime is 4011559. The next prime is 4011583. The reversal of 4011564 is 4651104.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 4011564.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167137 + ... + 167160.

Almost surely, 2^4011564 is an apocalyptic number.

It is an amenable number.

4011564 is an abundant number, since it is smaller than the sum of its proper divisors (5348780).

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

4011564 is a wasteful number, since it uses less digits than its factorization.

4011564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334304 (or 334302 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 4011564 is about 2002.8889135446. Note that the first 3 decimals coincide. The cubic root of 4011564 is about 158.8929305666.

Adding to 4011564 its reverse (4651104), we get a palindrome (8662668).

The spelling of 4011564 in words is "four million, eleven thousand, five hundred sixty-four".