451450042 has 4 divisors (see below), whose sum is σ = 677175066. Its totient is φ = 225725020.

The previous prime is 451449961. The next prime is 451450063. The reversal of 451450042 is 240054154.

It is a happy number.

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., 303073281 + 148376761 = 17409^2 + 12181^2 .

It is a junction number, because it is equal to n+sod(n) for n = 451449989 and 451450016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112862509 + ... + 112862512.

Almost surely, 2^451450042 is an apocalyptic number.

451450042 is a deficient number, since it is larger than the sum of its proper divisors (225725024).

451450042 is a wasteful number, since it uses less digits than its factorization.

451450042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225725023.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 451450042 is about 21247.3537646456. The cubic root of 451450042 is about 767.1316468149.

The spelling of 451450042 in words is "four hundred fifty-one million, four hundred fifty thousand, forty-two".