402380 has 48 divisors (see below), whose sum is σ = 967680. Its totient is φ = 139200.

The previous prime is 402379. The next prime is 402383. The reversal of 402380 is 83204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6791 + ... + 6849.

It is an arithmetic number, because the mean of its divisors is an integer number (20160).

2⁴⁰²³⁸⁰ 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 402380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483840).

402380 is an abundant number, since it is smaller than the sum of its proper divisors (565300).

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

402380 is a wasteful number, since it uses less digits than its factorization.

402380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 402380 is about 634.3342967237. The cubic root of 402380 is about 73.8264743456.

Adding to 402380 its reverse (83204), we get a palindrome (485584).

The spelling of 402380 in words is "four hundred two thousand, three hundred eighty".