1452797728 has 12 divisors (see below), whose sum is σ = 2860195590. Its totient is φ = 726398848.

The previous prime is 1452797707. The next prime is 1452797803. The reversal of 1452797728 is 8277972541.

It can be written as a sum of positive squares in only one way, i.e., 1353356944 + 99440784 = 36788^2 + 9972^2 .

It is a super-2 number, since 2×1452797728² = 4221242476963923968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22699933 + ... + 22699996.

Almost surely, 2^1452797728 is an apocalyptic number.

It is an amenable number.

1452797728 is a deficient number, since it is larger than the sum of its proper divisors (1407397862).

1452797728 is an equidigital number, since it uses as much as digits as its factorization.

1452797728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45399939 (or 45399931 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 52.

The square root of 1452797728 is about 38115.5837945584. The cubic root of 1452797728 is about 1132.5786850062.

The spelling of 1452797728 in words is "one billion, four hundred fifty-two million, seven hundred ninety-seven thousand, seven hundred twenty-eight".