451420005 has 16 divisors (see below), whose sum is σ = 729425664. Its totient is φ = 238372800.

The previous prime is 451419979. The next prime is 451420009. The reversal of 451420005 is 500024154.

It is not a de Polignac number, because 451420005 - 2⁷ = 451419877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451420009) 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, 147469 + ... + 150498.

It is an arithmetic number, because the mean of its divisors is an integer number (45589104).

Almost surely, 2^451420005 is an apocalyptic number.

It is an amenable number.

451420005 is a deficient number, since it is larger than the sum of its proper divisors (278005659).

451420005 is a wasteful number, since it uses less digits than its factorization.

451420005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298076.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 451420005 is about 21246.6469119247. The cubic root of 451420005 is about 767.1146328657.

Adding to 451420005 its reverse (500024154), we get a palindrome (951444159).

The spelling of 451420005 in words is "four hundred fifty-one million, four hundred twenty thousand, five".