42030453 has 32 divisors (see below), whose sum is σ = 60963840. Its totient is φ = 25688960.

The previous prime is 42030437. The next prime is 42030473. The reversal of 42030453 is 35403024.

It is a happy number.

It is not a de Polignac number, because 42030453 - 2⁴ = 42030437 is a prime.

It is a super-3 number, since 3×42030453³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42030473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234718 + ... + 234896.

It is an arithmetic number, because the mean of its divisors is an integer number (1905120).

Almost surely, 2^42030453 is an apocalyptic number.

It is an amenable number.

42030453 is a deficient number, since it is larger than the sum of its proper divisors (18933387).

42030453 is a wasteful number, since it uses less digits than its factorization.

42030453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 42030453 is about 6483.0897726316. The cubic root of 42030453 is about 347.6866564454.

Adding to 42030453 its reverse (35403024), we get a palindrome (77433477).

The spelling of 42030453 in words is "forty-two million, thirty thousand, four hundred fifty-three".