263026040 has 64 divisors (see below), whose sum is σ = 628637760. Its totient is φ = 98703360.

The previous prime is 263026033. The next prime is 263026051. The reversal of 263026040 is 40620362.

It is a super-5 number, since 5×263026040⁵ (a number of 43 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 263025997 and 263026015.

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, 416525 + ... + 417155.

It is an arithmetic number, because the mean of its divisors is an integer number (9822465).

Almost surely, 2^263026040 is an apocalyptic number.

263026040 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 263026040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314318880).

263026040 is an abundant number, since it is smaller than the sum of its proper divisors (365611720).

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

263026040 is a wasteful number, since it uses less digits than its factorization.

263026040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 263026040 is about 16218.0775679487. The cubic root of 263026040 is about 640.7170024201.

The spelling of 263026040 in words is "two hundred sixty-three million, twenty-six thousand, forty".