1422457144 has 32 divisors (see below), whose sum is σ = 2698758000. Its totient is φ = 702822400.

The previous prime is 1422457139. The next prime is 1422457171. The reversal of 1422457144 is 4417542241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382494 + ... + 386194.

Almost surely, 2^1422457144 is an apocalyptic number.

It is an amenable number.

1422457144 is a deficient number, since it is larger than the sum of its proper divisors (1276300856).

1422457144 is a wasteful number, since it uses less digits than its factorization.

1422457144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263 (or 4259 counting only the distinct ones).

The product of its digits is 35840, while the sum is 34.

The square root of 1422457144 is about 37715.4761868387. The cubic root of 1422457144 is about 1124.6388026292.

Adding to 1422457144 its reverse (4417542241), we get a palindrome (5839999385).

The spelling of 1422457144 in words is "one billion, four hundred twenty-two million, four hundred fifty-seven thousand, one hundred forty-four".