1444425454 has 4 divisors (see below), whose sum is σ = 2166638184. Its totient is φ = 722212726.

The previous prime is 1444425443. The next prime is 1444425469. The reversal of 1444425454 is 4545244441.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1444425454² = 4172729784326212232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361106362 + ... + 361106365.

It is an arithmetic number, because the mean of its divisors is an integer number (541659546).

Almost surely, 2^1444425454 is an apocalyptic number.

1444425454 is a deficient number, since it is larger than the sum of its proper divisors (722212730).

1444425454 is an equidigital number, since it uses as much as digits as its factorization.

1444425454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722212729.

The product of its digits is 204800, while the sum is 37.

The square root of 1444425454 is about 38005.5976666596. The cubic root of 1444425454 is about 1130.3988604231.

Adding to 1444425454 its reverse (4545244441), we get a palindrome (5989669895).

The spelling of 1444425454 in words is "one billion, four hundred forty-four million, four hundred twenty-five thousand, four hundred fifty-four".