3781727040 has 448 divisors, whose sum is σ = 15005523456. Its totient is φ = 785645568.

The previous prime is 3781727023. The next prime is 3781727041. The reversal of 3781727040 is 407271873.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 3781727040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781727041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6376984 + ... + 6377576.

It is an arithmetic number, because the mean of its divisors is an integer number (33494472).

Almost surely, 2^3781727040 is an apocalyptic number.

3781727040 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 3781727040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7502761728).

3781727040 is an abundant number, since it is smaller than the sum of its proper divisors (11223796416).

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

3781727040 is a wasteful number, since it uses less digits than its factorization.

3781727040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 3781727040 is about 61495.7481457052. The cubic root of 3781727040 is about 1557.9854337199.

The spelling of 3781727040 in words is "three billion, seven hundred eighty-one million, seven hundred twenty-seven thousand, forty".