1927881452 has 12 divisors (see below), whose sum is σ = 3855762960. Its totient is φ = 826234896.

The previous prime is 1927881451. The next prime is 1927881521. The reversal of 1927881452 is 2541887291.

1927881452 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1927881397 and 1927881406.

It is not an unprimeable number, because it can be changed into a prime (1927881451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34426427 + ... + 34426482.

It is an arithmetic number, because the mean of its divisors is an integer number (321313580).

Almost surely, 2^1927881452 is an apocalyptic number.

It is an amenable number.

1927881452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1927881452 is a wasteful number, since it uses less digits than its factorization.

1927881452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68852920 (or 68852918 counting only the distinct ones).

The product of its digits is 322560, while the sum is 47.

The square root of 1927881452 is about 43907.6468510896. The cubic root of 1927881452 is about 1244.5913406373.

The spelling of 1927881452 in words is "one billion, nine hundred twenty-seven million, eight hundred eighty-one thousand, four hundred fifty-two".