1140471220 has 24 divisors (see below), whose sum is σ = 2737131264. Its totient is φ = 391018656.

The previous prime is 1140471191. The next prime is 1140471221. The reversal of 1140471220 is 221740411.

It is a junction number, because it is equal to n+sod(n) for n = 1140471191 and 1140471200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140471221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4072972 + ... + 4073251.

It is an arithmetic number, because the mean of its divisors is an integer number (114047136).

Almost surely, 2^1140471220 is an apocalyptic number.

1140471220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1140471220 is an abundant number, since it is smaller than the sum of its proper divisors (1596660044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1140471220 is a wasteful number, since it uses less digits than its factorization.

1140471220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8146239 (or 8146237 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1140471220 is about 33770.8634772639. The cubic root of 1140471220 is about 1044.7878418228.

The spelling of 1140471220 in words is "one billion, one hundred forty million, four hundred seventy-one thousand, two hundred twenty".