260491140 has 576 divisors, whose sum is σ = 1095843840. Its totient is φ = 50388480.

The previous prime is 260491139. The next prime is 260491151. The reversal of 260491140 is 41194062.

260491140 is a `hidden beast` number, since 2 + 604 + 9 + 11 + 40 = 666.

260491140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8402925 + ... + 8402955.

Almost surely, 2^260491140 is an apocalyptic number.

260491140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260491140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547921920).

260491140 is an abundant number, since it is smaller than the sum of its proper divisors (835352700).

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

260491140 is a wasteful number, since it uses less digits than its factorization.

260491140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 260491140 is about 16139.7379160877. The cubic root of 260491140 is about 638.6520621183.

The spelling of 260491140 in words is "two hundred sixty million, four hundred ninety-one thousand, one hundred forty".