3649740072 has 64 divisors (see below), whose sum is σ = 9964339200. Its totient is φ = 1104815040.

The previous prime is 3649740037. The next prime is 3649740079. The reversal of 3649740072 is 2700479463.

It is not an unprimeable number, because it can be changed into a prime (3649740079) 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, 262233 + ... + 275799.

It is an arithmetic number, because the mean of its divisors is an integer number (155692800).

Almost surely, 2^3649740072 is an apocalyptic number.

It is an amenable number.

3649740072 is an abundant number, since it is smaller than the sum of its proper divisors (6314599128).

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

3649740072 is a wasteful number, since it uses less digits than its factorization.

3649740072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14606 (or 14602 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 3649740072 is about 60413.0786502393. The cubic root of 3649740072 is about 1539.6451749006.

The spelling of 3649740072 in words is "three billion, six hundred forty-nine million, seven hundred forty thousand, seventy-two".