1425644 has 12 divisors (see below), whose sum is σ = 2721768. Its totient is φ = 648000.

The previous prime is 1425629. The next prime is 1425649. The reversal of 1425644 is 4465241.

It is not an unprimeable number, because it can be changed into a prime (1425649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16157 + ... + 16244.

It is an arithmetic number, because the mean of its divisors is an integer number (226814).

2^1425644 is an apocalyptic number.

It is an amenable number.

1425644 is a deficient number, since it is larger than the sum of its proper divisors (1296124).

1425644 is a wasteful number, since it uses less digits than its factorization.

1425644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32416 (or 32414 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 1425644 is about 1194.0033500791. The cubic root of 1425644 is about 112.5478051974.

It can be divided in two parts, 14256 and 44, that multiplied together give a square (627264 = 792²).

The spelling of 1425644 in words is "one million, four hundred twenty-five thousand, six hundred forty-four".