380720910 has 16 divisors (see below), whose sum is σ = 913730256. Its totient is φ = 101525568.

The previous prime is 380720887. The next prime is 380720911. The reversal of 380720910 is 19027083.

It is a happy number.

It is a super-2 number, since 2×380720910² = 289896822622456200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 12690697 = 380720910 / (3 + 8 + 0 + 7 + 2 + 0 + 9 + 1 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380720911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6345319 + ... + 6345378.

It is an arithmetic number, because the mean of its divisors is an integer number (57108141).

Almost surely, 2^380720910 is an apocalyptic number.

380720910 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

380720910 is an abundant number, since it is smaller than the sum of its proper divisors (533009346).

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

380720910 is a wasteful number, since it uses less digits than its factorization.

380720910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12690707.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 380720910 is about 19512.0708793301. The cubic root of 380720910 is about 724.7733956886.

Adding to 380720910 its reverse (19027083), we get a palindrome (399747993).

The spelling of 380720910 in words is "three hundred eighty million, seven hundred twenty thousand, nine hundred ten".