42952457 has 4 divisors (see below), whose sum is σ = 43027476. Its totient is φ = 42877440.

The previous prime is 42952439. The next prime is 42952471. The reversal of 42952457 is 75425924.

42952457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26460736 + 16491721 = 5144^2 + 4061^2 .

It is a cyclic number.

It is not a de Polignac number, because 42952457 - 2¹⁴ = 42936073 is a prime.

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 42952457.

It is not an unprimeable number, because it can be changed into a prime (42952487) 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 3 ways as a sum of consecutive naturals, for example, 36644 + ... + 37797.

It is an arithmetic number, because the mean of its divisors is an integer number (10756869).

Almost surely, 2^42952457 is an apocalyptic number.

It is an amenable number.

42952457 is a deficient number, since it is larger than the sum of its proper divisors (75019).

42952457 is an equidigital number, since it uses as much as digits as its factorization.

42952457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75018.

The product of its digits is 100800, while the sum is 38.

The square root of 42952457 is about 6553.8124019535. The cubic root of 42952457 is about 350.2106405517.

The spelling of 42952457 in words is "forty-two million, nine hundred fifty-two thousand, four hundred fifty-seven".