3640036404 has 12 divisors (see below), whose sum is σ = 8493418304. Its totient is φ = 1213345464.

The previous prime is 3640036403. The next prime is 3640036409. The reversal of 3640036404 is 4046300463.

3640036404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640036403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151668172 + ... + 151668195.

Almost surely, 2^3640036404 is an apocalyptic number.

It is an amenable number.

3640036404 is an abundant number, since it is smaller than the sum of its proper divisors (4853381900).

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

3640036404 is a wasteful number, since it uses less digits than its factorization.

3640036404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303336374 (or 303336372 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 3640036404 is about 60332.7142104514. The cubic root of 3640036404 is about 1538.2794643237.

Adding to 3640036404 its reverse (4046300463), we get a palindrome (7686336867).

The spelling of 3640036404 in words is "three billion, six hundred forty million, thirty-six thousand, four hundred four".