451042542 has 24 divisors (see below), whose sum is σ = 977959944. Its totient is φ = 150239664.

The previous prime is 451042541. The next prime is 451042547. The reversal of 451042542 is 245240154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451042541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19188 + ... + 35640.

It is an arithmetic number, because the mean of its divisors is an integer number (40748331).

Almost surely, 2^451042542 is an apocalyptic number.

451042542 is an abundant number, since it is smaller than the sum of its proper divisors (526917402).

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

451042542 is a wasteful number, since it uses less digits than its factorization.

451042542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17984 (or 17981 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 451042542 is about 21237.7621702476. The cubic root of 451042542 is about 766.9007609864.

Adding to 451042542 its reverse (245240154), we get a palindrome (696282696).

It can be divided in two parts, 451042 and 542, that added together give a square (451584 = 672²).

The spelling of 451042542 in words is "four hundred fifty-one million, forty-two thousand, five hundred forty-two".