3644146464 has 72 divisors (see below), whose sum is σ = 11127675888. Its totient is φ = 1041183360.

The previous prime is 3644146423. The next prime is 3644146481. The reversal of 3644146464 is 4646414463.

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

It is a nude number because it is divisible by every one of its digits.

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 11 ways as a sum of consecutive naturals, for example, 382642 + ... + 392049.

It is an arithmetic number, because the mean of its divisors is an integer number (154551054).

Almost surely, 2^3644146464 is an apocalyptic number.

It is an amenable number.

3644146464 is an abundant number, since it is smaller than the sum of its proper divisors (7483529424).

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

3644146464 is a wasteful number, since it uses less digits than its factorization.

3644146464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774718 (or 774703 counting only the distinct ones).

The product of its digits is 663552, while the sum is 42.

The square root of 3644146464 is about 60366.7662211585. The cubic root of 3644146464 is about 1538.8582170322.

The spelling of 3644146464 in words is "three billion, six hundred forty-four million, one hundred forty-six thousand, four hundred sixty-four".