381466064 has 20 divisors (see below), whose sum is σ = 844675104. Its totient is φ = 163485408.

The previous prime is 381466061. The next prime is 381466079. The reversal of 381466064 is 460664183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381466061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1702862 + ... + 1703085.

Almost surely, 2^381466064 is an apocalyptic number.

It is an amenable number.

381466064 is an abundant number, since it is smaller than the sum of its proper divisors (463209040).

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

381466064 is a wasteful number, since it uses less digits than its factorization.

381466064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405962 (or 3405956 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 381466064 is about 19531.1562381749. The cubic root of 381466064 is about 725.2459341630.

The spelling of 381466064 in words is "three hundred eighty-one million, four hundred sixty-six thousand, sixty-four".