42800453 has 4 divisors (see below), whose sum is σ = 43957260. Its totient is φ = 41643648.

The previous prime is 42800449. The next prime is 42800473. The reversal of 42800453 is 35400824.

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 30283009 + 12517444 = 5503^2 + 3538^2 .

It is not a de Polignac number, because 42800453 - 2² = 42800449 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 (42800413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578348 + ... + 578421.

It is an arithmetic number, because the mean of its divisors is an integer number (10989315).

Almost surely, 2^42800453 is an apocalyptic number.

It is an amenable number.

42800453 is a deficient number, since it is larger than the sum of its proper divisors (1156807).

42800453 is a wasteful number, since it uses less digits than its factorization.

42800453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156806.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 42800453 is about 6542.2055149621. The cubic root of 42800453 is about 349.7970333418.

The spelling of 42800453 in words is "forty-two million, eight hundred thousand, four hundred fifty-three".