1452609820 has 24 divisors (see below), whose sum is σ = 3051471024. Its totient is φ = 580855296.

The previous prime is 1452609779. The next prime is 1452609859. The reversal of 1452609820 is 289062541.

It is a super-2 number, since 2×1452609820² = 4220150578320864800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1452609820.

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 7 ways as a sum of consecutive naturals, for example, 62892 + ... + 82828.

It is an arithmetic number, because the mean of its divisors is an integer number (127144626).

Almost surely, 2^1452609820 is an apocalyptic number.

1452609820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1452609820 is an abundant number, since it is smaller than the sum of its proper divisors (1598861204).

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

1452609820 is a wasteful number, since it uses less digits than its factorization.

1452609820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23589 (or 23587 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1452609820 is about 38113.1187388280. The cubic root of 1452609820 is about 1132.5298528420.

The spelling of 1452609820 in words is "one billion, four hundred fifty-two million, six hundred nine thousand, eight hundred twenty".