1331250442 has 8 divisors (see below), whose sum is σ = 2083696416. Its totient is φ = 636684972.

The previous prime is 1331250413. The next prime is 1331250461. The reversal of 1331250442 is 2440521331.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14470068 + ... + 14470159.

It is an arithmetic number, because the mean of its divisors is an integer number (260462052).

Almost surely, 2^1331250442 is an apocalyptic number.

1331250442 is a deficient number, since it is larger than the sum of its proper divisors (752445974).

1331250442 is a wasteful number, since it uses less digits than its factorization.

1331250442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28940252.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1331250442 is about 36486.3048553838. The cubic root of 1331250442 is about 1100.0689879597.

Adding to 1331250442 its reverse (2440521331), we get a palindrome (3771771773).

The spelling of 1331250442 in words is "one billion, three hundred thirty-one million, two hundred fifty thousand, four hundred forty-two".