3644040374 has 16 divisors (see below), whose sum is σ = 6142463712. Its totient is φ = 1608739968.

The previous prime is 3644040373. The next prime is 3644040377. The reversal of 3644040374 is 4730404463.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644040373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3046259 + ... + 3047454.

It is an arithmetic number, because the mean of its divisors is an integer number (383903982).

Almost surely, 2^3644040374 is an apocalyptic number.

3644040374 is a deficient number, since it is larger than the sum of its proper divisors (2498423338).

3644040374 is a wasteful number, since it uses less digits than its factorization.

3644040374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6093751.

The product of its (nonzero) digits is 96768, while the sum is 35.

The square root of 3644040374 is about 60365.8875027942. The cubic root of 3644040374 is about 1538.8432835808.

The spelling of 3644040374 in words is "three billion, six hundred forty-four million, forty thousand, three hundred seventy-four".