3781893400 has 48 divisors (see below), whose sum is σ = 8846922600. Its totient is φ = 1503463680.

The previous prime is 3781893383. The next prime is 3781893403. The reversal of 3781893400 is 43981873.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781893403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25405 + ... + 90604.

Almost surely, 2^3781893400 is an apocalyptic number.

It is an amenable number.

3781893400 is an abundant number, since it is smaller than the sum of its proper divisors (5065029200).

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

3781893400 is a wasteful number, since it uses less digits than its factorization.

3781893400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116188 (or 116179 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 3781893400 is about 61497.1007446693. The cubic root of 3781893400 is about 1558.0082788956.

The spelling of 3781893400 in words is "three billion, seven hundred eighty-one million, eight hundred ninety-three thousand, four hundred".