4001425 has 12 divisors (see below), whose sum is σ = 5178240. Its totient is φ = 3061520.

The previous prime is 4001411. The next prime is 4001453. The reversal of 4001425 is 5241004.

4001425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4001425 - 2¹³ = 3993233 is a prime.

It is a super-2 number, since 2×4001425² = 32022804061250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4001399 and 4001408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2905 + ... + 4054.

It is an arithmetic number, because the mean of its divisors is an integer number (431520).

Almost surely, 2^4001425 is an apocalyptic number.

It is an amenable number.

4001425 is a deficient number, since it is larger than the sum of its proper divisors (1176815).

4001425 is a wasteful number, since it uses less digits than its factorization.

4001425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6992 (or 6987 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4001425 is about 2000.3562182771. The cubic root of 4001425 is about 158.7589533463.

Adding to 4001425 its reverse (5241004), we get a palindrome (9242429).

The spelling of 4001425 in words is "four million, one thousand, four hundred twenty-five".