3903760644 has 48 divisors (see below), whose sum is σ = 10769001600. Its totient is φ = 1076898816.

The previous prime is 3903760613. The next prime is 3903760649. The reversal of 3903760644 is 4460673093.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 3903760596 and 3903760605.

It is not an unprimeable number, because it can be changed into a prime (3903760649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798829 + ... + 803700.

It is an arithmetic number, because the mean of its divisors is an integer number (224354200).

Almost surely, 2^3903760644 is an apocalyptic number.

It is an amenable number.

3903760644 is an abundant number, since it is smaller than the sum of its proper divisors (6865240956).

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

3903760644 is a wasteful number, since it uses less digits than its factorization.

3903760644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602572 (or 1602570 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 42.

The square root of 3903760644 is about 62480.0819781793. The cubic root of 3903760644 is about 1574.5666927943.

It can be divided in two parts, 39037 and 60644, that added together give a triangular number (99681 = T₄₄₆).

The spelling of 3903760644 in words is "three billion, nine hundred three million, seven hundred sixty thousand, six hundred forty-four".