451661042 has 8 divisors (see below), whose sum is σ = 774276096. Its totient is φ = 193569012.

The previous prime is 451661039. The next prime is 451661047. The reversal of 451661042 is 240166154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 451660996 and 451661014.

It is not an unprimeable number, because it can be changed into a prime (451661047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16130738 + ... + 16130765.

It is an arithmetic number, because the mean of its divisors is an integer number (96784512).

Almost surely, 2^451661042 is an apocalyptic number.

451661042 is a deficient number, since it is larger than the sum of its proper divisors (322615054).

451661042 is a wasteful number, since it uses less digits than its factorization.

451661042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32261512.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 451661042 is about 21252.3185088122. The cubic root of 451661042 is about 767.2511429211.

The spelling of 451661042 in words is "four hundred fifty-one million, six hundred sixty-one thousand, forty-two".