380436 has 36 divisors (see below), whose sum is σ = 1034208. Its totient is φ = 108528.

The previous prime is 380423. The next prime is 380441. The reversal of 380436 is 634083.

It is a d-powerful number, because it can be written as 3² + 8⁵ + 4⁸ + 0 + 3⁷ + 6⁷ .

It is a congruent number.

It is an unprimeable number.

380436 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 11 ways as a sum of consecutive naturals, for example, 265 + ... + 911.

It is an arithmetic number, because the mean of its divisors is an integer number (28728).

2³⁸⁰⁴³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517104).

380436 is an abundant number, since it is smaller than the sum of its proper divisors (653772).

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

380436 is a wasteful number, since it uses less digits than its factorization.

380436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 380436 is about 616.7949416135. The cubic root of 380436 is about 72.4592557430.

The spelling of 380436 in words is "three hundred eighty thousand, four hundred thirty-six".