1048740021 has 32 divisors (see below), whose sum is σ = 1836883200. Its totient is φ = 578612160.

The previous prime is 1048739987. The next prime is 1048740059. The reversal of 1048740021 is 1200478401.

It is not a de Polignac number, because 1048740021 - 2⁷ = 1048739893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048740071) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 90190 + ... + 101151.

It is an arithmetic number, because the mean of its divisors is an integer number (57402600).

Almost surely, 2^1048740021 is an apocalyptic number.

It is an amenable number.

1048740021 is a deficient number, since it is larger than the sum of its proper divisors (788143179).

1048740021 is a wasteful number, since it uses less digits than its factorization.

1048740021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191386 (or 191380 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 1048740021 is about 32384.2557580069. The cubic root of 1048740021 is about 1015.9896423216.

The spelling of 1048740021 in words is "one billion, forty-eight million, seven hundred forty thousand, twenty-one".