1881912452 has 48 divisors (see below), whose sum is σ = 3818274432. Its totient is φ = 794914560.

The previous prime is 1881912451. The next prime is 1881912493. The reversal of 1881912452 is 2542191881.

It is not an unprimeable number, because it can be changed into a prime (1881912451) 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, 1423952 + ... + 1425272.

It is an arithmetic number, because the mean of its divisors is an integer number (79547384).

Almost surely, 2^1881912452 is an apocalyptic number.

It is an amenable number.

1881912452 is an abundant number, since it is smaller than the sum of its proper divisors (1936361980).

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

1881912452 is a wasteful number, since it uses less digits than its factorization.

1881912452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028 (or 2026 counting only the distinct ones).

The product of its digits is 46080, while the sum is 41.

The square root of 1881912452 is about 43381.0148797835. The cubic root of 1881912452 is about 1234.6195185840.

The spelling of 1881912452 in words is "one billion, eight hundred eighty-one million, nine hundred twelve thousand, four hundred fifty-two".