42783453 has 12 divisors (see below), whose sum is σ = 62721568. Its totient is φ = 28096200.

The previous prime is 42783451. The next prime is 42783467. The reversal of 42783453 is 35438724.

It is a happy number.

It is not a de Polignac number, because 42783453 - 2¹ = 42783451 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 (42783451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34873 + ... + 36078.

Almost surely, 2^42783453 is an apocalyptic number.

It is an amenable number.

42783453 is a deficient number, since it is larger than the sum of its proper divisors (19938115).

42783453 is a wasteful number, since it uses less digits than its factorization.

42783453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71024 (or 71021 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 42783453 is about 6540.9061298875. The cubic root of 42783453 is about 349.7507150077.

The spelling of 42783453 in words is "forty-two million, seven hundred eighty-three thousand, four hundred fifty-three".