3649042784 has 12 divisors (see below), whose sum is σ = 7184053044. Its totient is φ = 1824521376.

The previous prime is 3649042783. The next prime is 3649042807. The reversal of 3649042784 is 4872409463.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649042781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57016262 + ... + 57016325.

It is an arithmetic number, because the mean of its divisors is an integer number (598671087).

Almost surely, 2^3649042784 is an apocalyptic number.

It is an amenable number.

3649042784 is a deficient number, since it is larger than the sum of its proper divisors (3535010260).

3649042784 is a wasteful number, since it uses less digits than its factorization.

3649042784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114032597 (or 114032589 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 47.

The square root of 3649042784 is about 60407.3073725357. The cubic root of 3649042784 is about 1539.5471181933.

The spelling of 3649042784 in words is "three billion, six hundred forty-nine million, forty-two thousand, seven hundred eighty-four".