367640389 has 4 divisors (see below), whose sum is σ = 367756524. Its totient is φ = 367524256.

The previous prime is 367640381. The next prime is 367640393. The reversal of 367640389 is 983046763.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147622500 + 220017889 = 12150^2 + 14833^2 .

It is a cyclic number.

It is not a de Polignac number, because 367640389 - 2³ = 367640381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (367640381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53182 + ... + 59695.

It is an arithmetic number, because the mean of its divisors is an integer number (91939131).

Almost surely, 2^367640389 is an apocalyptic number.

It is an amenable number.

367640389 is a deficient number, since it is larger than the sum of its proper divisors (116135).

367640389 is a wasteful number, since it uses less digits than its factorization.

367640389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116134.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 367640389 is about 19173.9507926770. The cubic root of 367640389 is about 716.3760735934.

The spelling of 367640389 in words is "three hundred sixty-seven million, six hundred forty thousand, three hundred eighty-nine".