70380 has 72 divisors (see below), whose sum is σ = 235872. Its totient is φ = 16896.

The previous prime is 70379. The next prime is 70381. The reversal of 70380 is 8307.

It is an interprime number because it is at equal distance from previous prime (70379) and next prime (70381).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70380.

It is not an unprimeable number, because it can be changed into a prime (70381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3049 + ... + 3071.

It is an arithmetic number, because the mean of its divisors is an integer number (3276).

2⁷⁰³⁸⁰ 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 70380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117936).

70380 is an abundant number, since it is smaller than the sum of its proper divisors (165492).

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

70380 is a wasteful number, since it uses less digits than its factorization.

70380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 70380 is about 265.2922916332. The cubic root of 70380 is about 41.2872940960.

Adding to 70380 its reverse (8307), we get a palindrome (78687).

The spelling of 70380 in words is "seventy thousand, three hundred eighty".