10402425 has 60 divisors (see below), whose sum is σ = 21065616. Its totient is φ = 5032800.

The previous prime is 10402421. The next prime is 10402429. The reversal of 10402425 is 52420401.

It is an interprime number because it is at equal distance from previous prime (10402421) and next prime (10402429).

It is not a de Polignac number, because 10402425 - 2² = 10402421 is a prime.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 10402398 and 10402407.

It is not an unprimeable number, because it can be changed into a prime (10402421) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 22042 + ... + 22508.

Almost surely, 2^10402425 is an apocalyptic number.

10402425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10402425 is an abundant number, since it is smaller than the sum of its proper divisors (10663191).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10402425 is a wasteful number, since it uses less digits than its factorization.

10402425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 10402425 is about 3225.2790576941. The cubic root of 10402425 is about 218.2955408562.

Adding to 10402425 its reverse (52420401), we get a palindrome (62822826).

The spelling of 10402425 in words is "ten million, four hundred two thousand, four hundred twenty-five".