263450628 has 72 divisors (see below), whose sum is σ = 765605568. Its totient is φ = 74824128.

The previous prime is 263450609. The next prime is 263450653. The reversal of 263450628 is 826054362.

263450628 is a `hidden beast` number, since 26 + 3 + 4 + 5 + 0 + 628 = 666.

263450628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 263450592 and 263450601.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40575 + ... + 46617.

Almost surely, 2^263450628 is an apocalyptic number.

263450628 is a gapful number since it is divisible by the number (28) 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 263450628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382802784).

263450628 is an abundant number, since it is smaller than the sum of its proper divisors (502154940).

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

263450628 is a wasteful number, since it uses less digits than its factorization.

263450628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233 (or 6228 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 263450628 is about 16231.1622504367. The cubic root of 263450628 is about 641.0615747697.

The spelling of 263450628 in words is "two hundred sixty-three million, four hundred fifty thousand, six hundred twenty-eight".