4012390 has 16 divisors (see below), whose sum is σ = 7376832. Its totient is φ = 1570624.

The previous prime is 4012381. The next prime is 4012441. The reversal of 4012390 is 932104.

It is a congruent 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 in 7 ways as a sum of consecutive naturals, for example, 3799 + ... + 4738.

It is an arithmetic number, because the mean of its divisors is an integer number (461052).

Almost surely, 2^4012390 is an apocalyptic number.

4012390 is a deficient number, since it is larger than the sum of its proper divisors (3364442).

4012390 is a wasteful number, since it uses less digits than its factorization.

4012390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 4012390 is about 2003.0951050811. The cubic root of 4012390 is about 158.9038354202.

Adding to 4012390 its reverse (932104), we get a palindrome (4944494).

The spelling of 4012390 in words is "four million, twelve thousand, three hundred ninety".