263432620 has 48 divisors (see below), whose sum is σ = 617557248. Its totient is φ = 93562560.

The previous prime is 263432597. The next prime is 263432627. The reversal of 263432620 is 26234362.

It is not an unprimeable number, because it can be changed into a prime (263432627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4464 + ... + 23383.

It is an arithmetic number, because the mean of its divisors is an integer number (12865776).

Almost surely, 2^263432620 is an apocalyptic number.

263432620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263432620 is an abundant number, since it is smaller than the sum of its proper divisors (354124628).

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

263432620 is a wasteful number, since it uses less digits than its factorization.

263432620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27910 (or 27908 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 263432620 is about 16230.6075055742. The cubic root of 263432620 is about 641.0469679849.

Adding to 263432620 its reverse (26234362), we get a palindrome (289666982).

The spelling of 263432620 in words is "two hundred sixty-three million, four hundred thirty-two thousand, six hundred twenty".