1787241252 has 48 divisors (see below), whose sum is σ = 4252953600. Its totient is φ = 584025120.

The previous prime is 1787241227. The next prime is 1787241259. The reversal of 1787241252 is 2521427871.

It is a self number, because there is not a number n which added to its sum of digits gives 1787241252.

It is not an unprimeable number, because it can be changed into a prime (1787241259) 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 15 ways as a sum of consecutive naturals, for example, 146649 + ... + 158367.

It is an arithmetic number, because the mean of its divisors is an integer number (88603200).

Almost surely, 2^1787241252 is an apocalyptic number.

1787241252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1787241252 is an abundant number, since it is smaller than the sum of its proper divisors (2465712348).

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

1787241252 is a wasteful number, since it uses less digits than its factorization.

1787241252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976 (or 11974 counting only the distinct ones).

The product of its digits is 62720, while the sum is 39.

The square root of 1787241252 is about 42275.7761844771. The cubic root of 1787241252 is about 1213.5594598941.

The spelling of 1787241252 in words is "one billion, seven hundred eighty-seven million, two hundred forty-one thousand, two hundred fifty-two".