381404160 has 352 divisors, whose sum is σ = 1414886400. Its totient is φ = 97320960.

The previous prime is 381404083. The next prime is 381404161. The reversal of 381404160 is 61404183.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381404161) 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, 4285396 + ... + 4285484.

Almost surely, 2^381404160 is an apocalyptic number.

381404160 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 381404160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707443200).

381404160 is an abundant number, since it is smaller than the sum of its proper divisors (1033482240).

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

381404160 is a wasteful number, since it uses less digits than its factorization.

381404160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 381404160 is about 19529.5714238690. The cubic root of 381404160 is about 725.2067012689.

The spelling of 381404160 in words is "three hundred eighty-one million, four hundred four thousand, one hundred sixty".