420074 has 4 divisors (see below), whose sum is σ = 630114. Its totient is φ = 210036.

The previous prime is 420073. The next prime is 420097. The reversal of 420074 is 470024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 354025 + 66049 = 595^2 + 257^2 .

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 420074.

It is not an unprimeable number, because it can be changed into a prime (420073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105017 + ... + 105020.

2⁴²⁰⁰⁷⁴ is an apocalyptic number.

420074 is a deficient number, since it is larger than the sum of its proper divisors (210040).

420074 is a wasteful number, since it uses less digits than its factorization.

420074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210039.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 420074 is about 648.1311595657. The cubic root of 420074 is about 74.8931218405.

Adding to 420074 its reverse (470024), we get a palindrome (890098).

The spelling of 420074 in words is "four hundred twenty thousand, seventy-four", and thus it is an iban number.