1425843881 has 8 divisors (see below), whose sum is σ = 1777675584. Its totient is φ = 1111047120.

The previous prime is 1425843871. The next prime is 1425843901. The reversal of 1425843881 is 1883485241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1425843881 - 2¹⁸ = 1425581737 is a prime.

It is a super-2 number, since 2×1425843881² = 4066061545970284322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425843821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9258650 + ... + 9258803.

It is an arithmetic number, because the mean of its divisors is an integer number (222209448).

Almost surely, 2^1425843881 is an apocalyptic number.

1425843881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1425843881 is a deficient number, since it is larger than the sum of its proper divisors (351831703).

1425843881 is a wasteful number, since it uses less digits than its factorization.

1425843881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18517471.

The product of its digits is 245760, while the sum is 44.

The square root of 1425843881 is about 37760.3479989261. The cubic root of 1425843881 is about 1125.5306483601.

The spelling of 1425843881 in words is "one billion, four hundred twenty-five million, eight hundred forty-three thousand, eight hundred eighty-one".