42573397 has 16 divisors (see below), whose sum is σ = 45017280. Its totient is φ = 40223232.

The previous prime is 42573383. The next prime is 42573403. The reversal of 42573397 is 79337524.

42573397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-42573397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42573317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246003 + ... + 246175.

It is an arithmetic number, because the mean of its divisors is an integer number (2813580).

It is a vampire number, since it can be written as 5723 ⋅ 7439 (with its own digits).

Almost surely, 2^42573397 is an apocalyptic number.

It is an amenable number.

42573397 is a deficient number, since it is larger than the sum of its proper divisors (2443883).

42573397 is a wasteful number, since it uses less digits than its factorization.

42573397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372.

The product of its digits is 158760, while the sum is 40.

The square root of 42573397 is about 6524.8292697970. The cubic root of 42573397 is about 349.1773796386.

The spelling of 42573397 in words is "forty-two million, five hundred seventy-three thousand, three hundred ninety-seven".