451430042 has 12 divisors (see below), whose sum is σ = 787699530. Its totient is φ = 193469976.

The previous prime is 451430033. The next prime is 451430059. The reversal of 451430042 is 240034154.

It can be written as a sum of positive squares in only one way, i.e., 444830281 + 6599761 = 21091^2 + 2569^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2303117 + ... + 2303312.

Almost surely, 2^451430042 is an apocalyptic number.

451430042 is a deficient number, since it is larger than the sum of its proper divisors (336269488).

451430042 is a wasteful number, since it uses less digits than its factorization.

451430042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606445 (or 4606438 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 451430042 is about 21246.8831125885. The cubic root of 451430042 is about 767.1203182381.

Adding to 451430042 its reverse (240034154), we get a palindrome (691464196).

The spelling of 451430042 in words is "four hundred fifty-one million, four hundred thirty thousand, forty-two".