421442300 has 36 divisors (see below), whose sum is σ = 917988120. Its totient is φ = 167939520.

The previous prime is 421442267. The next prime is 421442309. The reversal of 421442300 is 3244124.

It is a super-2 number, since 2×421442300² = 355227224458580000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421442309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19067 + ... + 34733.

It is an arithmetic number, because the mean of its divisors is an integer number (25499670).

Almost surely, 2^421442300 is an apocalyptic number.

It is an amenable number.

421442300 is an abundant number, since it is smaller than the sum of its proper divisors (496545820).

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

421442300 is a wasteful number, since it uses less digits than its factorization.

421442300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15950 (or 15943 counting only the distinct ones).

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

The square root of 421442300 is about 20529.0598907987. The cubic root of 421442300 is about 749.7434974705.

Adding to 421442300 its reverse (3244124), we get a palindrome (424686424).

It can be divided in two parts, 42144 and 2300, that added together give a palindrome (44444).

The spelling of 421442300 in words is "four hundred twenty-one million, four hundred forty-two thousand, three hundred".