1425023444 has 12 divisors (see below), whose sum is σ = 2685621204. Its totient is φ = 657703104.

The previous prime is 1425023441. The next prime is 1425023449. The reversal of 1425023444 is 4443205241.

It can be written as a sum of positive squares in 2 ways, for example, as 381733444 + 1043290000 = 19538^2 + 32300^2 .

It is a super-2 number, since 2×1425023444² = 4061383631899242272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425023441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13702097 + ... + 13702200.

It is an arithmetic number, because the mean of its divisors is an integer number (223801767).

Almost surely, 2^1425023444 is an apocalyptic number.

It is an amenable number.

1425023444 is a deficient number, since it is larger than the sum of its proper divisors (1260597760).

1425023444 is a wasteful number, since it uses less digits than its factorization.

1425023444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27404314 (or 27404312 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 1425023444 is about 37749.4826984424. The cubic root of 1425023444 is about 1125.3147284705.

Adding to 1425023444 its reverse (4443205241), we get a palindrome (5868228685).

The spelling of 1425023444 in words is "one billion, four hundred twenty-five million, twenty-three thousand, four hundred forty-four".