262650140240 has 20 divisors (see below), whose sum is σ = 610661576244. Its totient is φ = 105060056064.

The previous prime is 262650140227. The next prime is 262650140257. The reversal of 262650140240 is 42041056262.

It can be written as a sum of positive squares in 2 ways, for example, as 138878456896 + 123771683344 = 372664^2 + 351812^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 262650140197 and 262650140206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641563297 + ... + 1641563456.

Almost surely, 2^262650140240 is an apocalyptic number.

262650140240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

262650140240 is an abundant number, since it is smaller than the sum of its proper divisors (348011436004).

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

262650140240 is a wasteful number, since it uses less digits than its factorization.

262650140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283126766 (or 3283126760 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 262650140240 in words is "two hundred sixty-two billion, six hundred fifty million, one hundred forty thousand, two hundred forty".