1425646 has 8 divisors (see below), whose sum is σ = 2251080. Its totient is φ = 675288.

The previous prime is 1425629. The next prime is 1425649. The reversal of 1425646 is 6465241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425649) 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 3 ways as a sum of consecutive naturals, for example, 18721 + ... + 18796.

It is an arithmetic number, because the mean of its divisors is an integer number (281385).

2^1425646 is an apocalyptic number.

1425646 is a deficient number, since it is larger than the sum of its proper divisors (825434).

1425646 is a wasteful number, since it uses less digits than its factorization.

1425646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37538.

The product of its digits is 5760, while the sum is 28.

The square root of 1425646 is about 1194.0041875973. The cubic root of 1425646 is about 112.5478578276.

The spelling of 1425646 in words is "one million, four hundred twenty-five thousand, six hundred forty-six".