368778433 has 4 divisors (see below), whose sum is σ = 390471300. Its totient is φ = 347085568.

The previous prime is 368778349. The next prime is 368778437. The reversal of 368778433 is 334877863.

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 224490289 + 144288144 = 14983^2 + 12012^2 .

It is a cyclic number.

It is not a de Polignac number, because 368778433 - 2¹⁷ = 368647361 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (368778437) 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, 10846408 + ... + 10846441.

It is an arithmetic number, because the mean of its divisors is an integer number (97617825).

Almost surely, 2^368778433 is an apocalyptic number.

It is an amenable number.

368778433 is a deficient number, since it is larger than the sum of its proper divisors (21692867).

368778433 is a wasteful number, since it uses less digits than its factorization.

368778433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21692866.

The product of its digits is 2032128, while the sum is 49.

The square root of 368778433 is about 19203.6046876622. The cubic root of 368778433 is about 717.1145014434.

The spelling of 368778433 in words is "three hundred sixty-eight million, seven hundred seventy-eight thousand, four hundred thirty-three".