42453420 has 48 divisors (see below), whose sum is σ = 125864928. Its totient is φ = 10654720.

The previous prime is 42453413. The next prime is 42453451. The reversal of 42453420 is 2435424.

42453420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19791 + ... + 21830.

It is an arithmetic number, because the mean of its divisors is an integer number (2622186).

Almost surely, 2^42453420 is an apocalyptic number.

It is an amenable number.

42453420 is an abundant number, since it is smaller than the sum of its proper divisors (83411508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42453420 is a wasteful number, since it uses less digits than its factorization.

42453420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41650 (or 41648 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 42453420 is about 6515.6289028765. The cubic root of 42453420 is about 348.8490629543.

Adding to 42453420 its reverse (2435424), we get a palindrome (44888844).

The spelling of 42453420 in words is "forty-two million, four hundred fifty-three thousand, four hundred twenty".