451471449 has 48 divisors (see below), whose sum is σ = 737352000. Its totient is φ = 243788160.

The previous prime is 451471429. The next prime is 451471451. The reversal of 451471449 is 944174154.

It is not a de Polignac number, because 451471449 - 2⁵ = 451471417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451471409) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135202 + ... + 138500.

It is an arithmetic number, because the mean of its divisors is an integer number (15361500).

Almost surely, 2^451471449 is an apocalyptic number.

It is an amenable number.

451471449 is a deficient number, since it is larger than the sum of its proper divisors (285880551).

451471449 is a wasteful number, since it uses less digits than its factorization.

451471449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366 (or 3355 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 451471449 is about 21247.8575155238. The cubic root of 451471449 is about 767.1437719865.

The spelling of 451471449 in words is "four hundred fifty-one million, four hundred seventy-one thousand, four hundred forty-nine".