263464164 has 120 divisors (see below), whose sum is σ = 753274368. Its totient is φ = 79937280.

The previous prime is 263464153. The next prime is 263464171. The reversal of 263464164 is 461464362.

263464164 is a `hidden beast` number, since 2 + 6 + 3 + 4 + 641 + 6 + 4 = 666.

263464164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 169977 + ... + 171519.

Almost surely, 2^263464164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263464164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376637184).

263464164 is an abundant number, since it is smaller than the sum of its proper divisors (489810204).

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

263464164 is a wasteful number, since it uses less digits than its factorization.

263464164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1596 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 263464164 is about 16231.5792207659. The cubic root of 263464164 is about 641.0725537539.

The spelling of 263464164 in words is "two hundred sixty-three million, four hundred sixty-four thousand, one hundred sixty-four".