42834451 has 4 divisors (see below), whose sum is σ = 46728504. Its totient is φ = 38940400.

The previous prime is 42834443. The next prime is 42834457. The reversal of 42834451 is 15443824.

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

It is a cyclic number.

It is not a de Polignac number, because 42834451 - 2³ = 42834443 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42834457) 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, 1947010 + ... + 1947031.

It is an arithmetic number, because the mean of its divisors is an integer number (11682126).

Almost surely, 2^42834451 is an apocalyptic number.

42834451 is a deficient number, since it is larger than the sum of its proper divisors (3894053).

42834451 is a wasteful number, since it uses less digits than its factorization.

42834451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894052.

The product of its digits is 15360, while the sum is 31.

The square root of 42834451 is about 6544.8033583905. The cubic root of 42834451 is about 349.8896277829.

The spelling of 42834451 in words is "forty-two million, eight hundred thirty-four thousand, four hundred fifty-one".