421014540 has 96 divisors (see below), whose sum is σ = 1294917120. Its totient is φ = 101730816.

The previous prime is 421014523. The next prime is 421014541. The reversal of 421014540 is 45410124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (421014541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18192 + ... + 34248.

It is an arithmetic number, because the mean of its divisors is an integer number (13488720).

Almost surely, 2^421014540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421014540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647458560).

421014540 is an abundant number, since it is smaller than the sum of its proper divisors (873902580).

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

421014540 is a wasteful number, since it uses less digits than its factorization.

421014540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16111 (or 16109 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 421014540 is about 20518.6388437440. The cubic root of 421014540 is about 749.4897507174.

Adding to 421014540 its reverse (45410124), we get a palindrome (466424664).

The spelling of 421014540 in words is "four hundred twenty-one million, fourteen thousand, five hundred forty".