371978380 has 48 divisors (see below), whose sum is σ = 814502304. Its totient is φ = 142571520.

The previous prime is 371978329. The next prime is 371978381. The reversal of 371978380 is 83879173.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 371978380.

It is not an unprimeable number, because it can be changed into a prime (371978381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41500 + ... + 49660.

It is an arithmetic number, because the mean of its divisors is an integer number (16968798).

Almost surely, 2^371978380 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 371978380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407251152).

371978380 is an abundant number, since it is smaller than the sum of its proper divisors (442523924).

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

371978380 is a wasteful number, since it uses less digits than its factorization.

371978380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8266 (or 8264 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 371978380 is about 19286.7410414512. The cubic root of 371978380 is about 719.1827017212.

The spelling of 371978380 in words is "three hundred seventy-one million, nine hundred seventy-eight thousand, three hundred eighty".