510981140 has 24 divisors (see below), whose sum is σ = 1090654152. Its totient is φ = 201041280.

The previous prime is 510981113. The next prime is 510981181. The reversal of 510981140 is 41189015.

It can be written as a sum of positive squares in 4 ways, for example, as 60777616 + 450203524 = 7796^2 + 21218^2 .

It is a super-2 number, since 2×510981140² = 522203450871399200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208199 + ... + 210638.

It is an arithmetic number, because the mean of its divisors is an integer number (45443923).

Almost surely, 2^510981140 is an apocalyptic number.

It is an amenable number.

510981140 is an abundant number, since it is smaller than the sum of its proper divisors (579673012).

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

510981140 is a wasteful number, since it uses less digits than its factorization.

510981140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418907 (or 418905 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 510981140 is about 22604.8919484257. The cubic root of 510981140 is about 799.4689913653.

The spelling of 510981140 in words is "five hundred ten million, nine hundred eighty-one thousand, one hundred forty".