393962402 has 4 divisors (see below), whose sum is σ = 590943606. Its totient is φ = 196981200.

The previous prime is 393962383. The next prime is 393962447. The reversal of 393962402 is 204269393.

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

It can be written as a sum of positive squares in only one way, i.e., 237437281 + 156525121 = 15409^2 + 12511^2 .

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, 98490599 + ... + 98490602.

Almost surely, 2^393962402 is an apocalyptic number.

393962402 is a deficient number, since it is larger than the sum of its proper divisors (196981204).

393962402 is a wasteful number, since it uses less digits than its factorization.

393962402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196981203.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 393962402 is about 19848.4861387462. The cubic root of 393962402 is about 733.0803731290.

The spelling of 393962402 in words is "three hundred ninety-three million, nine hundred sixty-two thousand, four hundred two".