380136249 has 36 divisors (see below), whose sum is σ = 604820736. Its totient is φ = 229602384.

The previous prime is 380136247. The next prime is 380136257. The reversal of 380136249 is 942631083.

380136249 is a `hidden beast` number, since 380 + 1 + 36 + 249 = 666.

It is not a de Polignac number, because 380136249 - 2¹ = 380136247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380136247) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 72184 + ... + 77270.

It is an arithmetic number, because the mean of its divisors is an integer number (16800576).

Almost surely, 2^380136249 is an apocalyptic number.

It is an amenable number.

380136249 is a deficient number, since it is larger than the sum of its proper divisors (224684487).

380136249 is a wasteful number, since it uses less digits than its factorization.

380136249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154 (or 5132 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 380136249 is about 19497.0830895291. The cubic root of 380136249 is about 724.4022017914.

The spelling of 380136249 in words is "three hundred eighty million, one hundred thirty-six thousand, two hundred forty-nine".