381409112 has 16 divisors (see below), whose sum is σ = 817305360. Its totient is φ = 163461024.

The previous prime is 381409081. The next prime is 381409123. The reversal of 381409112 is 211904183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3405383 + ... + 3405494.

It is an arithmetic number, because the mean of its divisors is an integer number (51081585).

Almost surely, 2^381409112 is an apocalyptic number.

It is an amenable number.

381409112 is an abundant number, since it is smaller than the sum of its proper divisors (435896248).

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

381409112 is a wasteful number, since it uses less digits than its factorization.

381409112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810890 (or 6810886 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 381409112 is about 19529.6982055535. The cubic root of 381409112 is about 725.2098398538.

The spelling of 381409112 in words is "three hundred eighty-one million, four hundred nine thousand, one hundred twelve".