421435260 has 72 divisors (see below), whose sum is σ = 1308106800. Its totient is φ = 109767168.

The previous prime is 421435249. The next prime is 421435271. The reversal of 421435260 is 62534124.

It is an interprime number because it is at equal distance from previous prime (421435249) and next prime (421435271).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 19485 + ... + 34964.

It is an arithmetic number, because the mean of its divisors is an integer number (18168150).

Almost surely, 2^421435260 is an apocalyptic number.

It is an amenable number.

421435260 is an abundant number, since it is smaller than the sum of its proper divisors (886671540).

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

421435260 is a wasteful number, since it uses less digits than its factorization.

421435260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54507 (or 54502 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 421435260 is about 20528.8884258257. Note that the first 3 decimals coincide. The cubic root of 421435260 is about 749.7393227403.

Adding to 421435260 its reverse (62534124), we get a palindrome (483969384).

The spelling of 421435260 in words is "four hundred twenty-one million, four hundred thirty-five thousand, two hundred sixty".