4002925 has 6 divisors (see below), whose sum is σ = 4963658. Its totient is φ = 3202320.

The previous prime is 4002923. The next prime is 4002949. The reversal of 4002925 is 5292004.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 54756 + 3948169 = 234^2 + 1987^2 .

It is not a de Polignac number, because 4002925 - 2¹ = 4002923 is a prime.

It is an Ulam number.

It is a Duffinian number.

4002925 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4002896 and 4002905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80034 + ... + 80083.

Almost surely, 2^4002925 is an apocalyptic number.

It is an amenable number.

4002925 is a deficient number, since it is larger than the sum of its proper divisors (960733).

4002925 is a wasteful number, since it uses less digits than its factorization.

4002925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160127 (or 160122 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 4002925 is about 2000.7311163672. The cubic root of 4002925 is about 158.7787886699.

Adding to 4002925 its reverse (5292004), we get a palindrome (9294929).

The spelling of 4002925 in words is "four million, two thousand, nine hundred twenty-five".