262540220 has 48 divisors (see below), whose sum is σ = 567006048. Its totient is φ = 102051840.

The previous prime is 262540211. The next prime is 262540249. The reversal of 262540220 is 22045262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289007 + ... + 289913.

It is an arithmetic number, because the mean of its divisors is an integer number (11812626).

Almost surely, 2^262540220 is an apocalyptic number.

262540220 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 262540220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283503024).

262540220 is an abundant number, since it is smaller than the sum of its proper divisors (304465828).

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

262540220 is a wasteful number, since it uses less digits than its factorization.

262540220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 262540220 is about 16203.0929146259. The cubic root of 262540220 is about 640.3222823437.

Adding to 262540220 its reverse (22045262), we get a palindrome (284585482).

The spelling of 262540220 in words is "two hundred sixty-two million, five hundred forty thousand, two hundred twenty".