42354497 has 8 divisors (see below), whose sum is σ = 44985096. Its totient is φ = 39739392.

The previous prime is 42354491. The next prime is 42354583. The reversal of 42354497 is 79445324.

It can be written as a sum of positive squares in 4 ways, for example, as 2298256 + 40056241 = 1516^2 + 6329^2 .

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 42354497 - 2¹² = 42350401 is a prime.

It is a super-2 number, since 2×42354497² = 3587806832246018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42354497.

It is not an unprimeable number, because it can be changed into a prime (42354491) 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, 2033 + ... + 9425.

It is an arithmetic number, because the mean of its divisors is an integer number (5623137).

Almost surely, 2^42354497 is an apocalyptic number.

It is an amenable number.

42354497 is a deficient number, since it is larger than the sum of its proper divisors (2630599).

42354497 is a wasteful number, since it uses less digits than its factorization.

42354497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747.

The product of its digits is 120960, while the sum is 38.

The square root of 42354497 is about 6508.0332666636. The cubic root of 42354497 is about 348.5778948951.

The spelling of 42354497 in words is "forty-two million, three hundred fifty-four thousand, four hundred ninety-seven".