451040023 has 16 divisors (see below), whose sum is σ = 520124416. Its totient is φ = 383136480.

The previous prime is 451040021. The next prime is 451040033. The reversal of 451040023 is 320040154.

It is a cyclic number.

It is not a de Polignac number, because 451040023 - 2¹ = 451040021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451040021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441253 + ... + 442273.

It is an arithmetic number, because the mean of its divisors is an integer number (32507776).

Almost surely, 2^451040023 is an apocalyptic number.

451040023 is a deficient number, since it is larger than the sum of its proper divisors (69084393).

451040023 is a wasteful number, since it uses less digits than its factorization.

451040023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 451040023 is about 21237.7028654231. The cubic root of 451040023 is about 766.8993333113.

Adding to 451040023 its reverse (320040154), we get a palindrome (771080177).

The spelling of 451040023 in words is "four hundred fifty-one million, forty thousand, twenty-three".