260023500 has 384 divisors, whose sum is σ = 981227520. Its totient is φ = 58752000.

The previous prime is 260023499. The next prime is 260023507. The reversal of 260023500 is 5320062.

It is a super-2 number, since 2×260023500² = 135224441104500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (260023507) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2524449 + ... + 2524551.

It is an arithmetic number, because the mean of its divisors is an integer number (2555280).

Almost surely, 2^260023500 is an apocalyptic number.

260023500 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 260023500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490613760).

260023500 is an abundant number, since it is smaller than the sum of its proper divisors (721204020).

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

260023500 is a wasteful number, since it uses less digits than its factorization.

260023500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 260023500 is about 16125.2441841976. The cubic root of 260023500 is about 638.2696586465.

Adding to 260023500 its reverse (5320062), we get a palindrome (265343562).

The spelling of 260023500 in words is "two hundred sixty million, twenty-three thousand, five hundred".