420426133 has 4 divisors (see below), whose sum is σ = 445157100. Its totient is φ = 395695168.

The previous prime is 420426103. The next prime is 420426161. The reversal of 420426133 is 331624024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 341251729 + 79174404 = 18473^2 + 8898^2 .

It is a cyclic number.

It is not a de Polignac number, because 420426133 - 2⁵ = 420426101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420426098 and 420426107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420426103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12365458 + ... + 12365491.

It is an arithmetic number, because the mean of its divisors is an integer number (111289275).

Almost surely, 2^420426133 is an apocalyptic number.

It is an amenable number.

420426133 is a deficient number, since it is larger than the sum of its proper divisors (24730967).

420426133 is a wasteful number, since it uses less digits than its factorization.

420426133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24730966.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 420426133 is about 20504.2954768019. The cubic root of 420426133 is about 749.1404273710.

The spelling of 420426133 in words is "four hundred twenty million, four hundred twenty-six thousand, one hundred thirty-three".