383920407394 has 4 divisors (see below), whose sum is σ = 575880611094. Its totient is φ = 191960203696.

The previous prime is 383920407383. The next prime is 383920407413. The reversal of 383920407394 is 493704029383.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493704029383 = 282977 ⋅1744679.

It can be written as a sum of positive squares in only one way, i.e., 374562360225 + 9358047169 = 612015^2 + 96737^2 .

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 as a sum of consecutive naturals, namely, 95980101847 + ... + 95980101850.

Almost surely, 2^383920407394 is an apocalyptic number.

383920407394 is a deficient number, since it is larger than the sum of its proper divisors (191960203700).

383920407394 is a wasteful number, since it uses less digits than its factorization.

383920407394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191960203699.

The product of its (nonzero) digits is 3919104, while the sum is 52.

The spelling of 383920407394 in words is "three hundred eighty-three billion, nine hundred twenty million, four hundred seven thousand, three hundred ninety-four".