42273590 has 16 divisors (see below), whose sum is σ = 78716880. Its totient is φ = 16326240.

The previous prime is 42273589. The next prime is 42273599. The reversal of 42273590 is 9537224.

It is a happy number.

It is a super-2 number, since 2×42273590² = 3574112822976200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42273599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72596 + ... + 73175.

It is an arithmetic number, because the mean of its divisors is an integer number (4919805).

Almost surely, 2^42273590 is an apocalyptic number.

42273590 is a deficient number, since it is larger than the sum of its proper divisors (36443290).

42273590 is a wasteful number, since it uses less digits than its factorization.

42273590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145807.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 42273590 is about 6501.8143621608. The cubic root of 42273590 is about 348.3557983014.

The spelling of 42273590 in words is "forty-two million, two hundred seventy-three thousand, five hundred ninety".