42454613 has 4 divisors (see below), whose sum is σ = 42492588. Its totient is φ = 42416640.

The previous prime is 42454591. The next prime is 42454673. The reversal of 42454613 is 31645424.

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 23990404 + 18464209 = 4898^2 + 4297^2 .

It is a cyclic number.

It is not a de Polignac number, because 42454613 - 2⁶ = 42454549 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 (42454673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17258 + ... + 19563.

It is an arithmetic number, because the mean of its divisors is an integer number (10623147).

Almost surely, 2^42454613 is an apocalyptic number.

It is an amenable number.

42454613 is a deficient number, since it is larger than the sum of its proper divisors (37975).

42454613 is a wasteful number, since it uses less digits than its factorization.

42454613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37974.

The product of its digits is 11520, while the sum is 29.

The square root of 42454613 is about 6515.7204513392. The cubic root of 42454613 is about 348.8523306379.

The spelling of 42454613 in words is "forty-two million, four hundred fifty-four thousand, six hundred thirteen".