380540 has 24 divisors (see below), whose sum is σ = 816480. Its totient is φ = 148928.

The previous prime is 380533. The next prime is 380557. The reversal of 380540 is 45083.

It is a Harshad number since it is a multiple of its sum of digits (20).

380540 is a modest number, since divided by 540 gives 380 as remainder.

It is a congruent number.

It is an unprimeable number.

380540 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881 + ... + 1239.

It is an arithmetic number, because the mean of its divisors is an integer number (34020).

2³⁸⁰⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

380540 is an abundant number, since it is smaller than the sum of its proper divisors (435940).

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

380540 is a wasteful number, since it uses less digits than its factorization.

380540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 380540 is about 616.8792426399. The cubic root of 380540 is about 72.4658578837.

The spelling of 380540 in words is "three hundred eighty thousand, five hundred forty".