4012402 has 4 divisors (see below), whose sum is σ = 6018606. Its totient is φ = 2006200.

The previous prime is 4012381. The next prime is 4012441. The reversal of 4012402 is 2042104.

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., 3463321 + 549081 = 1861^2 + 741^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1003099 + ... + 1003102.

Almost surely, 2^4012402 is an apocalyptic number.

4012402 is a deficient number, since it is larger than the sum of its proper divisors (2006204).

4012402 is a wasteful number, since it uses less digits than its factorization.

4012402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006203.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 4012402 is about 2003.0981004434. The cubic root of 4012402 is about 158.9039938332.

Adding to 4012402 its reverse (2042104), we get a palindrome (6054506).

The spelling of 4012402 in words is "four million, twelve thousand, four hundred two".