42451463 has 4 divisors (see below), whose sum is σ = 43252488. Its totient is φ = 41650440.

The previous prime is 42451459. The next prime is 42451477. The reversal of 42451463 is 36415424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42451463 - 2² = 42451459 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 (42451483) 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, 400433 + ... + 400538.

It is an arithmetic number, because the mean of its divisors is an integer number (10813122).

Almost surely, 2^42451463 is an apocalyptic number.

42451463 is a deficient number, since it is larger than the sum of its proper divisors (801025).

42451463 is an equidigital number, since it uses as much as digits as its factorization.

42451463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801024.

The product of its digits is 11520, while the sum is 29.

The square root of 42451463 is about 6515.4787237777. The cubic root of 42451463 is about 348.8437025059.

Adding to 42451463 its reverse (36415424), we get a palindrome (78866887).

The spelling of 42451463 in words is "forty-two million, four hundred fifty-one thousand, four hundred sixty-three".