367986640 has 80 divisors (see below), whose sum is σ = 980472960. Its totient is φ = 125821440.

The previous prime is 367986631. The next prime is 367986643. The reversal of 367986640 is 46689763.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (367986643) 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, 284395 + ... + 285685.

It is an arithmetic number, because the mean of its divisors is an integer number (12255912).

Almost surely, 2^367986640 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 367986640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490236480).

367986640 is an abundant number, since it is smaller than the sum of its proper divisors (612486320).

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

367986640 is a wasteful number, since it uses less digits than its factorization.

367986640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 367986640 is about 19182.9778710189. The cubic root of 367986640 is about 716.6009020838.

The spelling of 367986640 in words is "three hundred sixty-seven million, nine hundred eighty-six thousand, six hundred forty".