380215749 has 8 divisors (see below), whose sum is σ = 507820320. Its totient is φ = 253044176.

The previous prime is 380215741. The next prime is 380215751. The reversal of 380215749 is 947512083.

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 380215749 - 2³ = 380215741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380215741) 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, 106194 + ... + 109715.

It is an arithmetic number, because the mean of its divisors is an integer number (63477540).

Almost surely, 2^380215749 is an apocalyptic number.

It is an amenable number.

380215749 is a deficient number, since it is larger than the sum of its proper divisors (127604571).

380215749 is a wasteful number, since it uses less digits than its factorization.

380215749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216499.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 380215749 is about 19499.1217494532. The cubic root of 380215749 is about 724.4526976868.

The spelling of 380215749 in words is "three hundred eighty million, two hundred fifteen thousand, seven hundred forty-nine".