260403490080 has 144 divisors (see below), whose sum is σ = 889445302200. Its totient is φ = 69376978944.

The previous prime is 260403490057. The next prime is 260403490099. The reversal of 260403490080 is 80094304062.

It is a happy number.

260403490080 is a `hidden beast` number, since 2 + 604 + 0 + 3 + 49 + 0 + 0 + 8 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 228985218576 + 31418271504 = 478524^2 + 177252^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1491196 + ... + 1656644.

Almost surely, 2^260403490080 is an apocalyptic number.

260403490080 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 260403490080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444722651100).

260403490080 is an abundant number, since it is smaller than the sum of its proper divisors (629041812120).

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

260403490080 is a wasteful number, since it uses less digits than its factorization.

260403490080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166563 (or 166552 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 260403490080 in words is "two hundred sixty billion, four hundred three million, four hundred ninety thousand, eighty".