1881262420 has 96 divisors (see below), whose sum is σ = 4136832000. Its totient is φ = 718147584.

The previous prime is 1881262417. The next prime is 1881262477. The reversal of 1881262420 is 242621881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9453481 + ... + 9453679.

It is an arithmetic number, because the mean of its divisors is an integer number (43092000).

Almost surely, 2^1881262420 is an apocalyptic number.

1881262420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1881262420 is an abundant number, since it is smaller than the sum of its proper divisors (2255569580).

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

1881262420 is a wasteful number, since it uses less digits than its factorization.

1881262420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 1881262420 is about 43373.5221073871. The cubic root of 1881262420 is about 1234.4773521026.

The spelling of 1881262420 in words is "one billion, eight hundred eighty-one million, two hundred sixty-two thousand, four hundred twenty".