3995402 has 4 divisors (see below), whose sum is σ = 5993106. Its totient is φ = 1997700.

The previous prime is 3995351. The next prime is 3995413. The reversal of 3995402 is 2045993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2045993 = 193 ⋅10601.

It can be written as a sum of positive squares in only one way, i.e., 3916441 + 78961 = 1979^2 + 281^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 998849 + ... + 998852.

Almost surely, 2^3995402 is an apocalyptic number.

3995402 is a deficient number, since it is larger than the sum of its proper divisors (1997704).

3995402 is a wasteful number, since it uses less digits than its factorization.

3995402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997703.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 3995402 is about 1998.8501694724. The cubic root of 3995402 is about 158.6792579593.

The spelling of 3995402 in words is "three million, nine hundred ninety-five thousand, four hundred two".