42620453 has 4 divisors (see below), whose sum is σ = 42866988. Its totient is φ = 42373920.

The previous prime is 42620447. The next prime is 42620467. The reversal of 42620453 is 35402624.

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 34656769 + 7963684 = 5887^2 + 2822^2 .

It is a cyclic number.

It is not a de Polignac number, because 42620453 - 2¹⁰ = 42619429 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 (42620423) 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, 123008 + ... + 123353.

It is an arithmetic number, because the mean of its divisors is an integer number (10716747).

Almost surely, 2^42620453 is an apocalyptic number.

It is an amenable number.

42620453 is a deficient number, since it is larger than the sum of its proper divisors (246535).

42620453 is a wasteful number, since it uses less digits than its factorization.

42620453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246534.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 42620453 is about 6528.4341920555. The cubic root of 42620453 is about 349.3059798288.

The spelling of 42620453 in words is "forty-two million, six hundred twenty thousand, four hundred fifty-three".