421074 has 24 divisors (see below), whose sum is σ = 924300. Its totient is φ = 138528.

The previous prime is 421049. The next prime is 421079. The reversal of 421074 is 470124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 378225 + 42849 = 615^2 + 207^2 .

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 (421079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2604 + ... + 2760.

2⁴²¹⁰⁷⁴ is an apocalyptic number.

421074 is an abundant number, since it is smaller than the sum of its proper divisors (503226).

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

421074 is a wasteful number, since it uses less digits than its factorization.

421074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 421074 is about 648.9021497884. The cubic root of 421074 is about 74.9525032605.

Adding to 421074 its reverse (470124), we get a palindrome (891198).

The spelling of 421074 in words is "four hundred twenty-one thousand, seventy-four", and thus it is an iban number.