263425420 has 12 divisors (see below), whose sum is σ = 553193424. Its totient is φ = 105370160.

The previous prime is 263425399. The next prime is 263425429. The reversal of 263425420 is 24524362.

It is not an unprimeable number, because it can be changed into a prime (263425429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6585616 + ... + 6585655.

It is an arithmetic number, because the mean of its divisors is an integer number (46099452).

Almost surely, 2^263425420 is an apocalyptic number.

263425420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263425420 is an abundant number, since it is smaller than the sum of its proper divisors (289768004).

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

263425420 is a wasteful number, since it uses less digits than its factorization.

263425420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13171280 (or 13171278 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 263425420 is about 16230.3857009006. The cubic root of 263425420 is about 641.0411276803.

Adding to 263425420 its reverse (24524362), we get a palindrome (287949782).

The spelling of 263425420 in words is "two hundred sixty-three million, four hundred twenty-five thousand, four hundred twenty".