3646253401 has 4 divisors (see below), whose sum is σ = 4167146752. Its totient is φ = 3125360052.

The previous prime is 3646253389. The next prime is 3646253417. The reversal of 3646253401 is 1043526463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3646253401 - 2²¹ = 3644156249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3646253441) 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 3 ways as a sum of consecutive naturals, for example, 260446665 + ... + 260446678.

It is an arithmetic number, because the mean of its divisors is an integer number (1041786688).

Almost surely, 2^3646253401 is an apocalyptic number.

It is an amenable number.

3646253401 is a deficient number, since it is larger than the sum of its proper divisors (520893351).

3646253401 is an equidigital number, since it uses as much as digits as its factorization.

3646253401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520893350.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 3646253401 is about 60384.2148330174. The cubic root of 3646253401 is about 1539.1547338970.

Adding to 3646253401 its reverse (1043526463), we get a palindrome (4689779864).

The spelling of 3646253401 in words is "three billion, six hundred forty-six million, two hundred fifty-three thousand, four hundred one".