451545442 has 16 divisors (see below), whose sum is σ = 708751872. Its totient is φ = 215494560.

The previous prime is 451545439. The next prime is 451545443. The reversal of 451545442 is 244545154.

It is a junction number, because it is equal to n+sod(n) for n = 451545398 and 451545407.

It is not an unprimeable number, because it can be changed into a prime (451545443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45358 + ... + 54409.

It is an arithmetic number, because the mean of its divisors is an integer number (44296992).

Almost surely, 2^451545442 is an apocalyptic number.

451545442 is a deficient number, since it is larger than the sum of its proper divisors (257206430).

451545442 is a wasteful number, since it uses less digits than its factorization.

451545442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99873.

The product of its digits is 64000, while the sum is 34.

The square root of 451545442 is about 21249.5986315036. The cubic root of 451545442 is about 767.1856795228.

The spelling of 451545442 in words is "four hundred fifty-one million, five hundred forty-five thousand, four hundred forty-two".