3744727640 has 64 divisors (see below), whose sum is σ = 8591076000. Its totient is φ = 1468615680.

The previous prime is 3744727639. The next prime is 3744727663. The reversal of 3744727640 is 467274473.

It is a junction number, because it is equal to n+sod(n) for n = 3744727591 and 3744727600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991676 + ... + 995444.

Almost surely, 2^3744727640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3744727640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4295538000).

3744727640 is an abundant number, since it is smaller than the sum of its proper divisors (4846348360).

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

3744727640 is a wasteful number, since it uses less digits than its factorization.

3744727640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260 (or 4256 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 44.

The square root of 3744727640 is about 61194.1797886041. The cubic root of 3744727640 is about 1552.8878026622.

The spelling of 3744727640 in words is "three billion, seven hundred forty-four million, seven hundred twenty-seven thousand, six hundred forty".