260670690 has 384 divisors, whose sum is σ = 916012800. Its totient is φ = 52254720.

The previous prime is 260670653. The next prime is 260670701. The reversal of 260670690 is 96076062.

It is a super-2 number, since 2×260670690² = 135898417250152200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4273260 + ... + 4273320.

It is an arithmetic number, because the mean of its divisors is an integer number (2385450).

Almost surely, 2^260670690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260670690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458006400).

260670690 is an abundant number, since it is smaller than the sum of its proper divisors (655342110).

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

260670690 is a wasteful number, since it uses less digits than its factorization.

260670690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 260670690 is about 16145.2993159000. The cubic root of 260670690 is about 638.7987640259.

The spelling of 260670690 in words is "two hundred sixty million, six hundred seventy thousand, six hundred ninety".