42273505 has 8 divisors (see below), whose sum is σ = 50846400. Its totient is φ = 33740016.

The previous prime is 42273493. The next prime is 42273521. The reversal of 42273505 is 50537224.

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

It is a cyclic number.

It is not a de Polignac number, because 42273505 - 2⁷ = 42273377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7435 + ... + 11824.

It is an arithmetic number, because the mean of its divisors is an integer number (6355800).

Almost surely, 2^42273505 is an apocalyptic number.

It is an amenable number.

42273505 is a deficient number, since it is larger than the sum of its proper divisors (8572895).

42273505 is a wasteful number, since it uses less digits than its factorization.

42273505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19703.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 42273505 is about 6501.8078255205. The cubic root of 42273505 is about 348.3555648202.

It can be divided in two parts, 42273 and 505, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 42273505 in words is "forty-two million, two hundred seventy-three thousand, five hundred five".