421505124 has 24 divisors (see below), whose sum is σ = 984617088. Its totient is φ = 140343840.

The previous prime is 421505113. The next prime is 421505137.

421505124 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 421505094 and 421505103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8347 + ... + 30210.

It is an arithmetic number, because the mean of its divisors is an integer number (41025712).

Almost surely, 2^421505124 is an apocalyptic number.

It is an amenable number.

421505124 is an abundant number, since it is smaller than the sum of its proper divisors (563111964).

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

421505124 is a wasteful number, since it uses less digits than its factorization.

421505124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39475 (or 39473 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 421505124 is about 20530.5899574269. The cubic root of 421505124 is about 749.7807501345.

It can be divided in two parts, 42150 and 5124, that added together give a palindrome (47274).

The spelling of 421505124 in words is "four hundred twenty-one million, five hundred five thousand, one hundred twenty-four".