421403024 has 40 divisors (see below), whose sum is σ = 934583040. Its totient is φ = 180315648.

The previous prime is 421403023. The next prime is 421403029. The reversal of 421403024 is 420304124.

It is a junction number, because it is equal to n+sod(n) for n = 421402987 and 421403005.

It is not an unprimeable number, because it can be changed into a prime (421403023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77912 + ... + 83144.

It is an arithmetic number, because the mean of its divisors is an integer number (23364576).

Almost surely, 2^421403024 is an apocalyptic number.

It is an amenable number.

421403024 is an abundant number, since it is smaller than the sum of its proper divisors (513180016).

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

421403024 is a wasteful number, since it uses less digits than its factorization.

421403024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5967 (or 5961 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 421403024 is about 20528.1032733178. The cubic root of 421403024 is about 749.7202061520.

Adding to 421403024 its reverse (420304124), we get a palindrome (841707148).

The spelling of 421403024 in words is "four hundred twenty-one million, four hundred three thousand, twenty-four".