421038 has 40 divisors (see below), whose sum is σ = 993168. Its totient is φ = 133056.

The previous prime is 421037. The next prime is 421049. The reversal of 421038 is 830124.

It is a happy number.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 421038.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3670 + ... + 3782.

2⁴²¹⁰³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496584).

421038 is an abundant number, since it is smaller than the sum of its proper divisors (572130).

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

421038 is a wasteful number, since it uses less digits than its factorization.

421038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 421038 is about 648.8744100363. The cubic root of 421038 is about 74.9503671617.

The spelling of 421038 in words is "four hundred twenty-one thousand, thirty-eight".