1048540989 has 8 divisors (see below), whose sum is σ = 1399018720. Its totient is φ = 698545296.

The previous prime is 1048540981. The next prime is 1048541003. The reversal of 1048540989 is 9890458401.

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

It is not a de Polignac number, because 1048540989 - 2³ = 1048540981 is a prime.

It is a super-2 number, since 2×1048540989² = 2198876411226196242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048540981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115402 + ... + 124155.

It is an arithmetic number, because the mean of its divisors is an integer number (174877340).

Almost surely, 2^1048540989 is an apocalyptic number.

It is an amenable number.

1048540989 is a deficient number, since it is larger than the sum of its proper divisors (350477731).

1048540989 is a wasteful number, since it uses less digits than its factorization.

1048540989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241019.

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 1048540989 is about 32381.1826374516. The cubic root of 1048540989 is about 1015.9253660663.

The spelling of 1048540989 in words is "one billion, forty-eight million, five hundred forty thousand, nine hundred eighty-nine".