1451381672 has 16 divisors (see below), whose sum is σ = 2930674740. Its totient is φ = 669868416.

The previous prime is 1451381669. The next prime is 1451381677. The reversal of 1451381672 is 2761831541.

It can be written as a sum of positive squares in 2 ways, for example, as 1432319716 + 19061956 = 37846^2 + 4366^2 .

It is not an unprimeable number, because it can be changed into a prime (1451381677) 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, 6977693 + ... + 6977900.

Almost surely, 2^1451381672 is an apocalyptic number.

It is an amenable number.

1451381672 is an abundant number, since it is smaller than the sum of its proper divisors (1479293068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1451381672 is a wasteful number, since it uses less digits than its factorization.

1451381672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13955612 (or 13955608 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 1451381672 is about 38097.0034517152. The cubic root of 1451381672 is about 1132.2105869170.

The spelling of 1451381672 in words is "one billion, four hundred fifty-one million, three hundred eighty-one thousand, six hundred seventy-two".