1420425 has 36 divisors (see below), whose sum is σ = 2611440. Its totient is φ = 737760.

The previous prime is 1420403. The next prime is 1420429. The reversal of 1420425 is 5240241.

1420425 = 58² + 59² + ... + 164².

It is not a de Polignac number, because 1420425 - 2⁸ = 1420169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1420398 and 1420407.

It is not an unprimeable number, because it can be changed into a prime (1420429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13222 + ... + 13328.

It is an arithmetic number, because the mean of its divisors is an integer number (72540).

2^1420425 is an apocalyptic number.

1420425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1420425 is a deficient number, since it is larger than the sum of its proper divisors (1191015).

1420425 is a wasteful number, since it uses less digits than its factorization.

1420425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 174 counting only the distinct ones).

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

The square root of 1420425 is about 1191.8158414789. The cubic root of 1420425 is about 112.4102988668.

Adding to 1420425 its reverse (5240241), we get a palindrome (6660666).

The spelling of 1420425 in words is "one million, four hundred twenty thousand, four hundred twenty-five".