368402389 has 4 divisors (see below), whose sum is σ = 372841056. Its totient is φ = 363963724.

The previous prime is 368402369. The next prime is 368402429. The reversal of 368402389 is 983204863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 983204863 = 17191 ⋅57193.

It is a cyclic number.

It is not a de Polignac number, because 368402389 - 2¹⁷ = 368271317 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368402329) 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, 2219209 + ... + 2219374.

It is an arithmetic number, because the mean of its divisors is an integer number (93210264).

Almost surely, 2^368402389 is an apocalyptic number.

It is an amenable number.

368402389 is a deficient number, since it is larger than the sum of its proper divisors (4438667).

368402389 is an equidigital number, since it uses as much as digits as its factorization.

368402389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438666.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 368402389 is about 19193.8112161186. The cubic root of 368402389 is about 716.8706709179.

The spelling of 368402389 in words is "three hundred sixty-eight million, four hundred two thousand, three hundred eighty-nine".