421100460 has 72 divisors (see below), whose sum is σ = 1393466256. Its totient is φ = 102084480.

The previous prime is 421100453. The next prime is 421100461. The reversal of 421100460 is 64001124.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (421100461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104359 + ... + 108318.

It is an arithmetic number, because the mean of its divisors is an integer number (19353698).

Almost surely, 2^421100460 is an apocalyptic number.

It is an amenable number.

421100460 is an abundant number, since it is smaller than the sum of its proper divisors (972365796).

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

421100460 is a wasteful number, since it uses less digits than its factorization.

421100460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212703 (or 212698 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 421100460 is about 20520.7324430684. The cubic root of 421100460 is about 749.5407321548.

Adding to 421100460 its reverse (64001124), we get a palindrome (485101584).

The spelling of 421100460 in words is "four hundred twenty-one million, one hundred thousand, four hundred sixty".