380201820 has 24 divisors (see below), whose sum is σ = 1064565264. Its totient is φ = 101387136.

The previous prime is 380201813. The next prime is 380201831. The reversal of 380201820 is 28102083.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3168289 + ... + 3168408.

It is an arithmetic number, because the mean of its divisors is an integer number (44356886).

Almost surely, 2^380201820 is an apocalyptic number.

380201820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

380201820 is an abundant number, since it is smaller than the sum of its proper divisors (684363444).

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

380201820 is a wasteful number, since it uses less digits than its factorization.

380201820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336709 (or 6336707 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 380201820 is about 19498.7645762494. The cubic root of 380201820 is about 724.4438509334.

The spelling of 380201820 in words is "three hundred eighty million, two hundred one thousand, eight hundred twenty".