42452437 has 2 divisors, whose sum is σ = 42452438. Its totient is φ = 42452436.

The previous prime is 42452429. The next prime is 42452453. The reversal of 42452437 is 73425424.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36469521 + 5982916 = 6039^2 + 2446^2 .

It is a cyclic number.

It is not a de Polignac number, because 42452437 - 2³ = 42452429 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42452399 and 42452408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42452497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21226218 + 21226219.

It is an arithmetic number, because the mean of its divisors is an integer number (21226219).

Almost surely, 2^42452437 is an apocalyptic number.

It is an amenable number.

42452437 is a deficient number, since it is larger than the sum of its proper divisors (1).

42452437 is an equidigital number, since it uses as much as digits as its factorization.

42452437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 31.

The square root of 42452437 is about 6515.5534684323. The cubic root of 42452437 is about 348.8463704247.

The spelling of 42452437 in words is "forty-two million, four hundred fifty-two thousand, four hundred thirty-seven".