906871442 has 8 divisors (see below), whose sum is σ = 1361537100. Its totient is φ = 453025744.

The previous prime is 906871429. The next prime is 906871451. The reversal of 906871442 is 244178609.

It can be written as a sum of positive squares in 2 ways, for example, as 746874241 + 159997201 = 27329^2 + 12649^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 906871442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202217 + ... + 206652.

Almost surely, 2^906871442 is an apocalyptic number.

906871442 is a deficient number, since it is larger than the sum of its proper divisors (454665658).

906871442 is a wasteful number, since it uses less digits than its factorization.

906871442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409980.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 906871442 is about 30114.3062679518. The cubic root of 906871442 is about 967.9403073463.

It can be divided in two parts, 90687 and 1442, that added together give a palindrome (92129).

The spelling of 906871442 in words is "nine hundred six million, eight hundred seventy-one thousand, four hundred forty-two".