420214540 has 48 divisors (see below), whose sum is σ = 895595904. Its totient is φ = 165600000.

The previous prime is 420214481. The next prime is 420214547. The reversal of 420214540 is 45412024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (420214547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559165 + ... + 559915.

It is an arithmetic number, because the mean of its divisors is an integer number (18658248).

Almost surely, 2^420214540 is an apocalyptic number.

It is an amenable number.

420214540 is an abundant number, since it is smaller than the sum of its proper divisors (475381364).

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

420214540 is a wasteful number, since it uses less digits than its factorization.

420214540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 420214540 is about 20499.1351037062. The cubic root of 420214540 is about 749.0147299277.

Adding to 420214540 its reverse (45412024), we get a palindrome (465626564).

The spelling of 420214540 in words is "four hundred twenty million, two hundred fourteen thousand, five hundred forty".