3778591432 has 128 divisors (see below), whose sum is σ = 9278115840. Its totient is φ = 1398862080.

The previous prime is 3778591423. The next prime is 3778591433. The reversal of 3778591432 is 2341958773.

It is not an unprimeable number, because it can be changed into a prime (3778591433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2365258 + ... + 2366854.

It is an arithmetic number, because the mean of its divisors is an integer number (72485280).

Almost surely, 2^3778591432 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 3778591432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4639057920).

3778591432 is an abundant number, since it is smaller than the sum of its proper divisors (5499524408).

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

3778591432 is a wasteful number, since it uses less digits than its factorization.

3778591432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811 (or 1807 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The square root of 3778591432 is about 61470.2483482863. The cubic root of 3778591432 is about 1557.5547149546.

The spelling of 3778591432 in words is "three billion, seven hundred seventy-eight million, five hundred ninety-one thousand, four hundred thirty-two".