1451444464 has 20 divisors (see below), whose sum is σ = 2821225680. Its totient is φ = 723386240.

The previous prime is 1451444441. The next prime is 1451444497. The reversal of 1451444464 is 4644441541.

It is a congruent number.

It is an unprimeable number.

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, 140869 + ... + 150820.

It is an arithmetic number, because the mean of its divisors is an integer number (141061284).

Almost surely, 2^1451444464 is an apocalyptic number.

It is an amenable number.

1451444464 is a deficient number, since it is larger than the sum of its proper divisors (1369781216).

1451444464 is a wasteful number, since it uses less digits than its factorization.

1451444464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292008 (or 292002 counting only the distinct ones).

The product of its digits is 122880, while the sum is 37.

The square root of 1451444464 is about 38097.8275496123. The cubic root of 1451444464 is about 1132.2269145179.

The spelling of 1451444464 in words is "one billion, four hundred fifty-one million, four hundred forty-four thousand, four hundred sixty-four".