1140048021 has 16 divisors (see below), whose sum is σ = 1748880000. Its totient is φ = 647082048.

The previous prime is 1140048001. The next prime is 1140048047. The reversal of 1140048021 is 1208400411.

It is a happy number.

It is not a de Polignac number, because 1140048021 - 2⁷ = 1140047893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140048001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179046 + ... + 185303.

It is an arithmetic number, because the mean of its divisors is an integer number (109305000).

Almost surely, 2^1140048021 is an apocalyptic number.

It is an amenable number.

1140048021 is a deficient number, since it is larger than the sum of its proper divisors (608831979).

1140048021 is a wasteful number, since it uses less digits than its factorization.

1140048021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364508.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 1140048021 is about 33764.5971544160. The cubic root of 1140048021 is about 1044.6585947000.

Adding to 1140048021 its reverse (1208400411), we get a palindrome (2348448432).

The spelling of 1140048021 in words is "one billion, one hundred forty million, forty-eight thousand, twenty-one".