3809640544 has 12 divisors (see below), whose sum is σ = 7500229884. Its totient is φ = 1904820256.

The previous prime is 3809640491. The next prime is 3809640547. The reversal of 3809640544 is 4450469083.

It is a happy number.

It is a super-2 number, since 2×3809640544² = 29026722148977231872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3809640544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3809640547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59525602 + ... + 59525665.

It is an arithmetic number, because the mean of its divisors is an integer number (625019157).

Almost surely, 2^3809640544 is an apocalyptic number.

It is an amenable number.

3809640544 is a deficient number, since it is larger than the sum of its proper divisors (3690589340).

3809640544 is a wasteful number, since it uses less digits than its factorization.

3809640544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119051277 (or 119051269 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 3809640544 is about 61722.2856349309. The cubic root of 3809640544 is about 1561.8092836488.

The spelling of 3809640544 in words is "three billion, eight hundred nine million, six hundred forty thousand, five hundred forty-four".