451240023 has 32 divisors (see below), whose sum is σ = 661655232. Its totient is φ = 271872000.

The previous prime is 451240007. The next prime is 451240037. The reversal of 451240023 is 320042154.

It is not a de Polignac number, because 451240023 - 2⁴ = 451240007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451240523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381493 + ... + 382673.

It is an arithmetic number, because the mean of its divisors is an integer number (20676726).

Almost surely, 2^451240023 is an apocalyptic number.

451240023 is a deficient number, since it is larger than the sum of its proper divisors (210415209).

451240023 is a wasteful number, since it uses less digits than its factorization.

451240023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 451240023 is about 21242.4109507372. The cubic root of 451240023 is about 767.0126693007.

Adding to 451240023 its reverse (320042154), we get a palindrome (771282177).

The spelling of 451240023 in words is "four hundred fifty-one million, two hundred forty thousand, twenty-three".