3644253801 has 16 divisors (see below), whose sum is σ = 5418827520. Its totient is φ = 2420532720.

The previous prime is 3644253797. The next prime is 3644253803. The reversal of 3644253801 is 1083524463.

3644253801 is a `hidden beast` number, since 3 + 644 + 2 + 5 + 3 + 8 + 0 + 1 = 666.

It is not a de Polignac number, because 3644253801 - 2² = 3644253797 is a prime.

It is a super-2 number, since 2×3644253801² = 26561171532205895202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3644253803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241710 + ... + 256343.

It is an arithmetic number, because the mean of its divisors is an integer number (338676720).

Almost surely, 2^3644253801 is an apocalyptic number.

It is an amenable number.

3644253801 is a deficient number, since it is larger than the sum of its proper divisors (1774573719).

3644253801 is a wasteful number, since it uses less digits than its factorization.

3644253801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498333 (or 498327 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 3644253801 is about 60367.6552551116. The cubic root of 3644253801 is about 1538.8733257190.

The spelling of 3644253801 in words is "three billion, six hundred forty-four million, two hundred fifty-three thousand, eight hundred one".