6402425 has 12 divisors (see below), whose sum is σ = 8053056. Its totient is φ = 5048400.

The previous prime is 6402413. The next prime is 6402433. The reversal of 6402425 is 5242046.

It is not a de Polignac number, because 6402425 - 2⁸ = 6402169 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6402425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29 + ... + 3578.

It is an arithmetic number, because the mean of its divisors is an integer number (671088).

Almost surely, 2^6402425 is an apocalyptic number.

It is an amenable number.

6402425 is a deficient number, since it is larger than the sum of its proper divisors (1650631).

6402425 is a wasteful number, since it uses less digits than its factorization.

6402425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688 (or 3683 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 6402425 is about 2530.3013654504. The cubic root of 6402425 is about 185.6870000770.

The spelling of 6402425 in words is "six million, four hundred two thousand, four hundred twenty-five".