3643732365 has 48 divisors (see below), whose sum is σ = 7303500288. Its totient is φ = 1537570944.

The previous prime is 3643732321. The next prime is 3643732423. The reversal of 3643732365 is 5632373463.

It is not a de Polignac number, because 3643732365 - 2¹⁷ = 3643601293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181117 + ... + 200226.

It is an arithmetic number, because the mean of its divisors is an integer number (152156256).

Almost surely, 2^3643732365 is an apocalyptic number.

3643732365 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3643732365 is an abundant number, since it is smaller than the sum of its proper divisors (3659767923).

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

3643732365 is a wasteful number, since it uses less digits than its factorization.

3643732365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381378 (or 381371 counting only the distinct ones).

The product of its digits is 816480, while the sum is 42.

The square root of 3643732365 is about 60363.3362646565. The cubic root of 3643732365 is about 1538.7999259441.

The spelling of 3643732365 in words is "three billion, six hundred forty-three million, seven hundred thirty-two thousand, three hundred sixty-five".