3730202640 has 120 divisors (see below), whose sum is σ = 12575534400. Its totient is φ = 990888192.

The previous prime is 3730202639. The next prime is 3730202669. The reversal of 3730202640 is 462020373.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179511 + ... + 199209.

It is an arithmetic number, because the mean of its divisors is an integer number (104796120).

Almost surely, 2^3730202640 is an apocalyptic number.

3730202640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3730202640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6287767200).

3730202640 is an abundant number, since it is smaller than the sum of its proper divisors (8845331760).

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

3730202640 is a wasteful number, since it uses less digits than its factorization.

3730202640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19981 (or 19972 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 3730202640 is about 61075.3848944073. The cubic root of 3730202640 is about 1550.8774275944.

The spelling of 3730202640 in words is "three billion, seven hundred thirty million, two hundred two thousand, six hundred forty".