3781043748 has 18 divisors (see below), whose sum is σ = 9557638454. Its totient is φ = 1260347904.

The previous prime is 3781043723. The next prime is 3781043753. The reversal of 3781043748 is 8473401873.

It can be written as a sum of positive squares in only one way, i.e., 2897884224 + 883159524 = 53832^2 + 29718^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52514461 + ... + 52514532.

Almost surely, 2^3781043748 is an apocalyptic number.

It is an amenable number.

3781043748 is an abundant number, since it is smaller than the sum of its proper divisors (5776594706).

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

3781043748 is a wasteful number, since it uses less digits than its factorization.

3781043748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105029003 (or 105028998 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 3781043748 is about 61490.1922911288. The cubic root of 3781043748 is about 1557.8915944860.

The spelling of 3781043748 in words is "three billion, seven hundred eighty-one million, forty-three thousand, seven hundred forty-eight".