451067642 has 4 divisors (see below), whose sum is σ = 676601466. Its totient is φ = 225533820.

The previous prime is 451067641. The next prime is 451067677. The reversal of 451067642 is 246760154.

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

It can be written as a sum of positive squares in only one way, i.e., 447787921 + 3279721 = 21161^2 + 1811^2 .

It is not an unprimeable number, because it can be changed into a prime (451067641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112766909 + ... + 112766912.

Almost surely, 2^451067642 is an apocalyptic number.

451067642 is a deficient number, since it is larger than the sum of its proper divisors (225533824).

451067642 is a wasteful number, since it uses less digits than its factorization.

451067642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225533823.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 451067642 is about 21238.3530905765. The cubic root of 451067642 is about 766.9149864384.

The spelling of 451067642 in words is "four hundred fifty-one million, sixty-seven thousand, six hundred forty-two".