420540267 has 8 divisors (see below), whose sum is σ = 640823296. Its totient is φ = 240308712.

The previous prime is 420540233. The next prime is 420540277. The reversal of 420540267 is 762045024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420540267 - 2⁸ = 420540011 is a prime.

It is a super-3 number, since 3×420540267³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420540277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10012843 + ... + 10012884.

It is an arithmetic number, because the mean of its divisors is an integer number (80102912).

Almost surely, 2^420540267 is an apocalyptic number.

420540267 is a deficient number, since it is larger than the sum of its proper divisors (220283029).

420540267 is a wasteful number, since it uses less digits than its factorization.

420540267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20025737.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 420540267 is about 20507.0784608632. The cubic root of 420540267 is about 749.2082114999.

The spelling of 420540267 in words is "four hundred twenty million, five hundred forty thousand, two hundred sixty-seven".