42452429 has 2 divisors, whose sum is σ = 42452430. Its totient is φ = 42452428.

The previous prime is 42452419. The next prime is 42452437. The reversal of 42452429 is 92425424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36929929 + 5522500 = 6077^2 + 2350^2 .

It is a cyclic number.

It is not a de Polignac number, because 42452429 - 2⁴ = 42452413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42452395 and 42452404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42452419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21226214 + 21226215.

It is an arithmetic number, because the mean of its divisors is an integer number (21226215).

Almost surely, 2^42452429 is an apocalyptic number.

It is an amenable number.

42452429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42452429 is an equidigital number, since it uses as much as digits as its factorization.

42452429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 32.

The square root of 42452429 is about 6515.5528545166. The cubic root of 42452429 is about 348.8463485117.

The spelling of 42452429 in words is "forty-two million, four hundred fifty-two thousand, four hundred twenty-nine".