1402425 has 36 divisors (see below), whose sum is σ = 2630784. Its totient is φ = 712800.

The previous prime is 1402421. The next prime is 1402439. The reversal of 1402425 is 5242041.

It is not a de Polignac number, because 1402425 - 2² = 1402421 is a prime.

1402425 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1402398 and 1402407.

It is not an unprimeable number, because it can be changed into a prime (1402421) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 5040 + ... + 5310.

2^1402425 is an apocalyptic number.

1402425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1402425 is a deficient number, since it is larger than the sum of its proper divisors (1228359).

1402425 is a wasteful number, since it uses less digits than its factorization.

1402425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 302 counting only the distinct ones).

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

The square root of 1402425 is about 1184.2402627845. The cubic root of 1402425 is about 111.9334479191.

Adding to 1402425 its reverse (5242041), we get a palindrome (6644466).

The spelling of 1402425 in words is "one million, four hundred two thousand, four hundred twenty-five".