421010724 has 24 divisors (see below), whose sum is σ = 988041600. Its totient is φ = 139525024.

The previous prime is 421010701. The next prime is 421010741. The reversal of 421010724 is 427010124.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 421010724.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99324 + ... + 103475.

It is an arithmetic number, because the mean of its divisors is an integer number (41168400).

Almost surely, 2^421010724 is an apocalyptic number.

It is an amenable number.

421010724 is an abundant number, since it is smaller than the sum of its proper divisors (567030876).

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

421010724 is a wasteful number, since it uses less digits than its factorization.

421010724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202979 (or 202977 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 421010724 is about 20518.5458549089. The cubic root of 421010724 is about 749.4874862972.

Adding to 421010724 its reverse (427010124), we get a palindrome (848020848).

The spelling of 421010724 in words is "four hundred twenty-one million, ten thousand, seven hundred twenty-four".