42430455 has 12 divisors (see below), whose sum is σ = 73546200. Its totient is φ = 22629552.

The previous prime is 42430429. The next prime is 42430457. The reversal of 42430455 is 55403424.

It is not a de Polignac number, because 42430455 - 2⁷ = 42430327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42430457) 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, 471405 + ... + 471494.

It is an arithmetic number, because the mean of its divisors is an integer number (6128850).

Almost surely, 2^42430455 is an apocalyptic number.

42430455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42430455 is a deficient number, since it is larger than the sum of its proper divisors (31115745).

42430455 is a wasteful number, since it uses less digits than its factorization.

42430455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942910 (or 942907 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 42430455 is about 6513.8663633820. The cubic root of 42430455 is about 348.7861487947.

Adding to 42430455 its reverse (55403424), we get a palindrome (97833879).

The spelling of 42430455 in words is "forty-two million, four hundred thirty thousand, four hundred fifty-five".