380865654 has 96 divisors (see below), whose sum is σ = 955674720. Its totient is φ = 108573696.

The previous prime is 380865631. The next prime is 380865677. The reversal of 380865654 is 456568083.

380865654 is a `hidden beast` number, since 3 + 8 + 0 + 86 + 565 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (380865631) and next prime (380865677).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265812 + ... + 267240.

It is an arithmetic number, because the mean of its divisors is an integer number (9954945).

Almost surely, 2^380865654 is an apocalyptic number.

380865654 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 380865654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477837360).

380865654 is an abundant number, since it is smaller than the sum of its proper divisors (574809066).

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

380865654 is a wasteful number, since it uses less digits than its factorization.

380865654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 380865654 is about 19515.7796154804. The cubic root of 380865654 is about 724.8652331351.

The spelling of 380865654 in words is "three hundred eighty million, eight hundred sixty-five thousand, six hundred fifty-four".