263420250 has 64 divisors (see below), whose sum is σ = 668753280. Its totient is φ = 69043200.

The previous prime is 263420231. The next prime is 263420251. The reversal of 263420250 is 52024362.

It is a super-2 number, since 2×263420250² = 138780456220125000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 263420250.

It is not an unprimeable number, because it can be changed into a prime (263420251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41274 + ... + 47226.

It is an arithmetic number, because the mean of its divisors is an integer number (10449270).

Almost surely, 2^263420250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263420250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334376640).

263420250 is an abundant number, since it is smaller than the sum of its proper divisors (405333030).

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

263420250 is a wasteful number, since it uses less digits than its factorization.

263420250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032 (or 6022 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 263420250 is about 16230.2264309528. The cubic root of 263420250 is about 641.0369339515.

The spelling of 263420250 in words is "two hundred sixty-three million, four hundred twenty thousand, two hundred fifty".