3992402 has 8 divisors (see below), whose sum is σ = 6019596. Its totient is φ = 1985872.

The previous prime is 3992393. The next prime is 3992407. The reversal of 3992402 is 2042993.

It can be written as a sum of positive squares in 2 ways, for example, as 3129361 + 863041 = 1769^2 + 929^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3992407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4673 + ... + 5460.

Almost surely, 2^3992402 is an apocalyptic number.

3992402 is a deficient number, since it is larger than the sum of its proper divisors (2027194).

3992402 is a wasteful number, since it uses less digits than its factorization.

3992402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10332.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 3992402 is about 1998.0995971172. The cubic root of 3992402 is about 158.6395325474.

The spelling of 3992402 in words is "three million, nine hundred ninety-two thousand, four hundred two".