380979900 has 324 divisors, whose sum is σ = 1424018232. Its totient is φ = 84913920.

The previous prime is 380979899. The next prime is 380979901. The reversal of 380979900 is 9979083.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (380979899) and next prime (380979901).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380979901) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 2337219 + ... + 2337381.

It is an arithmetic number, because the mean of its divisors is an integer number (4395118).

Almost surely, 2^380979900 is an apocalyptic number.

380979900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380979900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712009116).

380979900 is an abundant number, since it is smaller than the sum of its proper divisors (1043038332).

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

380979900 is a wasteful number, since it uses less digits than its factorization.

380979900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 380979900 is about 19518.7064120551. The cubic root of 380979900 is about 724.9377037238.

The spelling of 380979900 in words is "three hundred eighty million, nine hundred seventy-nine thousand, nine hundred".