380905615 has 8 divisors (see below), whose sum is σ = 458530560. Its totient is φ = 303761952.

The previous prime is 380905583. The next prime is 380905667. The reversal of 380905615 is 516509083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 380905615 - 2⁵ = 380905583 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118575 + ... + 121744.

It is an arithmetic number, because the mean of its divisors is an integer number (57316320).

Almost surely, 2^380905615 is an apocalyptic number.

380905615 is a deficient number, since it is larger than the sum of its proper divisors (77624945).

380905615 is a wasteful number, since it uses less digits than its factorization.

380905615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240641.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 380905615 is about 19516.8034011720. The cubic root of 380905615 is about 724.8905835671.

The spelling of 380905615 in words is "three hundred eighty million, nine hundred five thousand, six hundred fifteen".