392000402 has 8 divisors (see below), whose sum is σ = 599095116. Its totient is φ = 192302032.

The previous prime is 392000383. The next prime is 392000417. The reversal of 392000402 is 204000293.

It is a Cunningham number, because it is equal to 19799²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 392000401 + 1 = 19799^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1848953 + ... + 1849164.

Almost surely, 2^392000402 is an apocalyptic number.

392000402 is a deficient number, since it is larger than the sum of its proper divisors (207094714).

392000402 is a wasteful number, since it uses less digits than its factorization.

392000402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3698172.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 392000402 is about 19799.0000252538. Note that the first 4 decimals coincide. The cubic root of 392000402 is about 731.8613921815.

Adding to 392000402 its reverse (204000293), we get a palindrome (596000695).

The spelling of 392000402 in words is "three hundred ninety-two million, four hundred two", and thus it is an aban number.