3644067140 has 24 divisors (see below), whose sum is σ = 8745761472. Its totient is φ = 1249394400.

The previous prime is 3644067139. The next prime is 3644067197. The reversal of 3644067140 is 417604463.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 3644067140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13014386 + ... + 13014665.

It is an arithmetic number, because the mean of its divisors is an integer number (364406728).

Almost surely, 2^3644067140 is an apocalyptic number.

It is an amenable number.

3644067140 is an abundant number, since it is smaller than the sum of its proper divisors (5101694332).

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

3644067140 is a wasteful number, since it uses less digits than its factorization.

3644067140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26029067 (or 26029065 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 3644067140 is about 60366.1092004446. The cubic root of 3644067140 is about 1538.8470512466.

The spelling of 3644067140 in words is "three billion, six hundred forty-four million, sixty-seven thousand, one hundred forty".