1451729072 has 20 divisors (see below), whose sum is σ = 2819751816. Its totient is φ = 724051200.

The previous prime is 1451729053. The next prime is 1451729087. The reversal of 1451729072 is 2709271541.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 106718 + ... + 119549.

Almost surely, 2^1451729072 is an apocalyptic number.

It is an amenable number.

1451729072 is a deficient number, since it is larger than the sum of its proper divisors (1368022744).

1451729072 is a wasteful number, since it uses less digits than its factorization.

1451729072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226676 (or 226670 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 1451729072 is about 38101.5625926287. The cubic root of 1451729072 is about 1132.3009143128.

The spelling of 1451729072 in words is "one billion, four hundred fifty-one million, seven hundred twenty-nine thousand, seventy-two".