260990064 has 30 divisors (see below), whose sum is σ = 730410096. Its totient is φ = 86996640.

The previous prime is 260990063. The next prime is 260990071. The reversal of 260990064 is 460099062.

260990064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×260990064³ (a number of 26 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260990063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 906072 + ... + 906359.

Almost surely, 2^260990064 is an apocalyptic number.

260990064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

260990064 is an abundant number, since it is smaller than the sum of its proper divisors (469420032).

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

260990064 is a wasteful number, since it uses less digits than its factorization.

260990064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812445 (or 1812436 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 260990064 is about 16155.1869069968. The cubic root of 260990064 is about 639.0595431889.

The spelling of 260990064 in words is "two hundred sixty million, nine hundred ninety thousand, sixty-four".