3662321640 has 32 divisors (see below), whose sum is σ = 10986965280. Its totient is φ = 976619072.

The previous prime is 3662321623. The next prime is 3662321647. The reversal of 3662321640 is 461232663.

It is not an unprimeable number, because it can be changed into a prime (3662321647) 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 7 ways as a sum of consecutive naturals, for example, 15259554 + ... + 15259793.

It is an arithmetic number, because the mean of its divisors is an integer number (343342665).

Almost surely, 2^3662321640 is an apocalyptic number.

3662321640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3662321640 is an abundant number, since it is smaller than the sum of its proper divisors (7324643640).

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

3662321640 is a wasteful number, since it uses less digits than its factorization.

3662321640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30519361 (or 30519357 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 3662321640 is about 60517.1185698724. The cubic root of 3662321640 is about 1541.4123266744.

The spelling of 3662321640 in words is "three billion, six hundred sixty-two million, three hundred twenty-one thousand, six hundred forty".