381770684 has 24 divisors (see below), whose sum is σ = 687781248. Its totient is φ = 185315760.

The previous prime is 381770677. The next prime is 381770687. The reversal of 381770684 is 486077183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381770687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22079 + ... + 35369.

It is an arithmetic number, because the mean of its divisors is an integer number (28657552).

Almost surely, 2^381770684 is an apocalyptic number.

It is an amenable number.

381770684 is a deficient number, since it is larger than the sum of its proper divisors (306010564).

381770684 is a wasteful number, since it uses less digits than its factorization.

381770684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13505 (or 13503 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 381770684 is about 19538.9529913964. The cubic root of 381770684 is about 725.4389313537.

The spelling of 381770684 in words is "three hundred eighty-one million, seven hundred seventy thousand, six hundred eighty-four".