42573345 has 16 divisors (see below), whose sum is σ = 71079552. Its totient is φ = 21718400.

The previous prime is 42573331. The next prime is 42573359. The reversal of 42573345 is 54337524.

It is an interprime number because it is at equal distance from previous prime (42573331) and next prime (42573359).

It is not a de Polignac number, because 42573345 - 2¹³ = 42565153 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61356 + ... + 62045.

It is an arithmetic number, because the mean of its divisors is an integer number (4442472).

Almost surely, 2^42573345 is an apocalyptic number.

It is an amenable number.

42573345 is a deficient number, since it is larger than the sum of its proper divisors (28506207).

42573345 is a wasteful number, since it uses less digits than its factorization.

42573345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123432.

The product of its digits is 50400, while the sum is 33.

The square root of 42573345 is about 6524.8252850172. The cubic root of 42573345 is about 349.1772374745.

Adding to 42573345 its sum of digits (33), we get a triangular number (42573378 = T₉₂₂₇).

The spelling of 42573345 in words is "forty-two million, five hundred seventy-three thousand, three hundred forty-five".