380205400 has 24 divisors (see below), whose sum is σ = 883978020. Its totient is φ = 152082080.

The previous prime is 380205373. The next prime is 380205403. The reversal of 380205400 is 4502083.

It is a super-2 number, since 2×380205400² = 289112292378320000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380205403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 950314 + ... + 950713.

Almost surely, 2^380205400 is an apocalyptic number.

It is an amenable number.

380205400 is an abundant number, since it is smaller than the sum of its proper divisors (503772620).

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

380205400 is a wasteful number, since it uses less digits than its factorization.

380205400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901043 (or 1901034 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 380205400 is about 19498.8563767212. The cubic root of 380205400 is about 724.4461247265.

Adding to 380205400 its reverse (4502083), we get a palindrome (384707483).

The spelling of 380205400 in words is "three hundred eighty million, two hundred five thousand, four hundred".