380649 has 8 divisors (see below), whose sum is σ = 524032. Its totient is φ = 245520.

The previous prime is 380641. The next prime is 380651. The reversal of 380649 is 946083.

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

It is not a de Polignac number, because 380649 - 2³ = 380641 is a prime.

It is a super-2 number, since 2×380649² = 289787322402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380641) 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, 1954 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (65504).

2³⁸⁰⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

380649 is a deficient number, since it is larger than the sum of its proper divisors (143383).

380649 is a wasteful number, since it uses less digits than its factorization.

380649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 380649 is about 616.9675842376. The cubic root of 380649 is about 72.4727761441.

The spelling of 380649 in words is "three hundred eighty thousand, six hundred forty-nine".