421042050 has 240 divisors, whose sum is σ = 1376286912. Its totient is φ = 94089600.

The previous prime is 421042049. The next prime is 421042051. The reversal of 421042050 is 50240124.

It is an interprime number because it is at equal distance from previous prime (421042049) and next prime (421042051).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (421042051) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 578787 + ... + 579513.

Almost surely, 2^421042050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421042050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688143456).

421042050 is an abundant number, since it is smaller than the sum of its proper divisors (955244862).

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

421042050 is a wasteful number, since it uses less digits than its factorization.

421042050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 421042050 is about 20519.3091988985. The cubic root of 421042050 is about 749.5060747886.

Adding to 421042050 its reverse (50240124), we get a palindrome (471282174).

The spelling of 421042050 in words is "four hundred twenty-one million, forty-two thousand, fifty".