3646633338 has 64 divisors (see below), whose sum is σ = 8166977280. Its totient is φ = 1206088704.

The previous prime is 3646633337. The next prime is 3646633339. The reversal of 3646633338 is 8333366463.

3646633338 is a `hidden beast` number, since 3 + 6 + 4 + 6 + 633 + 3 + 3 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (3646633337) and next prime (3646633339).

It is a junction number, because it is equal to n+sod(n) for n = 3646633293 and 3646633302.

It is not an unprimeable number, because it can be changed into a prime (3646633337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6149170 + ... + 6149762.

It is an arithmetic number, because the mean of its divisors is an integer number (127609020).

Almost surely, 2^3646633338 is an apocalyptic number.

3646633338 is an abundant number, since it is smaller than the sum of its proper divisors (4520343942).

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

3646633338 is a wasteful number, since it uses less digits than its factorization.

3646633338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300 (or 1294 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 45.

The square root of 3646633338 is about 60387.3607470967. The cubic root of 3646633338 is about 1539.2081916483.

The spelling of 3646633338 in words is "three billion, six hundred forty-six million, six hundred thirty-three thousand, three hundred thirty-eight".