1820612352 has 72 divisors (see below), whose sum is σ = 5218242064. Its totient is φ = 560185344.

The previous prime is 1820612347. The next prime is 1820612359. The reversal of 1820612352 is 2532160281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820612359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81193 + ... + 101160.

Almost surely, 2^1820612352 is an apocalyptic number.

1820612352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1820612352 is an abundant number, since it is smaller than the sum of its proper divisors (3397629712).

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

1820612352 is a wasteful number, since it uses less digits than its factorization.

1820612352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182385 (or 182371 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1820612352 is about 42668.6342879638. The cubic root of 1820612352 is about 1221.0660645037.

The spelling of 1820612352 in words is "one billion, eight hundred twenty million, six hundred twelve thousand, three hundred fifty-two".