262556040 has 128 divisors (see below), whose sum is σ = 827366400. Its totient is φ = 66528000.

The previous prime is 262556027. The next prime is 262556051. The reversal of 262556040 is 40655262.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 262555989 and 262556007.

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 31 ways as a sum of consecutive naturals, for example, 692571 + ... + 692949.

It is an arithmetic number, because the mean of its divisors is an integer number (6463800).

Almost surely, 2^262556040 is an apocalyptic number.

262556040 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 262556040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413683200).

262556040 is an abundant number, since it is smaller than the sum of its proper divisors (564810360).

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

262556040 is a wasteful number, since it uses less digits than its factorization.

262556040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 262556040 is about 16203.5810856736. The cubic root of 262556040 is about 640.3351434780.

The spelling of 262556040 in words is "two hundred sixty-two million, five hundred fifty-six thousand, forty".