3784857456 has 80 divisors (see below), whose sum is σ = 10624240640. Its totient is φ = 1156654080.

The previous prime is 3784857451. The next prime is 3784857469. The reversal of 3784857456 is 6547584873.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 3784857396 and 3784857405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3784857451) 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, 38665 + ... + 95208.

It is an arithmetic number, because the mean of its divisors is an integer number (132803008).

Almost surely, 2^3784857456 is an apocalyptic number.

It is an amenable number.

3784857456 is an abundant number, since it is smaller than the sum of its proper divisors (6839383184).

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

3784857456 is a wasteful number, since it uses less digits than its factorization.

3784857456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133934 (or 133928 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 57.

The square root of 3784857456 is about 61521.1951769469. The cubic root of 3784857456 is about 1558.4152018631.

The spelling of 3784857456 in words is "three billion, seven hundred eighty-four million, eight hundred fifty-seven thousand, four hundred fifty-six".