1331423874 has 48 divisors (see below), whose sum is σ = 3158254944. Its totient is φ = 402019200.

The previous prime is 1331423861. The next prime is 1331423897. The reversal of 1331423874 is 4783241331.

1331423874 is a `hidden beast` number, since 133 + 142 + 387 + 4 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 44154 + ... + 67914.

It is an arithmetic number, because the mean of its divisors is an integer number (65796978).

Almost surely, 2^1331423874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331423874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1579127472).

1331423874 is an abundant number, since it is smaller than the sum of its proper divisors (1826831070).

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

1331423874 is a wasteful number, since it uses less digits than its factorization.

1331423874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24063 (or 24060 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 1331423874 is about 36488.6814505540. The cubic root of 1331423874 is about 1100.1167573036.

The spelling of 1331423874 in words is "one billion, three hundred thirty-one million, four hundred twenty-three thousand, eight hundred seventy-four".