451383969 has 16 divisors (see below), whose sum is σ = 634292480. Its totient is φ = 284737680.

The previous prime is 451383967. The next prime is 451383973. The reversal of 451383969 is 969383154.

It is not a de Polignac number, because 451383969 - 2¹ = 451383967 is a prime.

It is a super-2 number, since 2×451383969² = 407494974940385922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451383967) 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, 47334 + ... + 56064.

It is an arithmetic number, because the mean of its divisors is an integer number (39643280).

Almost surely, 2^451383969 is an apocalyptic number.

It is an amenable number.

451383969 is a deficient number, since it is larger than the sum of its proper divisors (182908511).

451383969 is a wasteful number, since it uses less digits than its factorization.

451383969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660.

The product of its digits is 699840, while the sum is 48.

The square root of 451383969 is about 21245.7988553031. The cubic root of 451383969 is about 767.0942198887.

The spelling of 451383969 in words is "four hundred fifty-one million, three hundred eighty-three thousand, nine hundred sixty-nine".