451249449 has 16 divisors (see below), whose sum is σ = 723809280. Its totient is φ = 244285200.

The previous prime is 451249429. The next prime is 451249507. The reversal of 451249449 is 944942154.

It is not a de Polignac number, because 451249449 - 2¹³ = 451241257 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 451249449.

It is not an unprimeable number, because it can be changed into a prime (451249429) 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, 565077 + ... + 565874.

It is an arithmetic number, because the mean of its divisors is an integer number (45238080).

Almost surely, 2^451249449 is an apocalyptic number.

It is an amenable number.

451249449 is a deficient number, since it is larger than the sum of its proper divisors (272559831).

451249449 is a wasteful number, since it uses less digits than its factorization.

451249449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130980.

The product of its digits is 207360, while the sum is 42.

The square root of 451249449 is about 21242.6328170498. The cubic root of 451249449 is about 767.0180099994.

The spelling of 451249449 in words is "four hundred fifty-one million, two hundred forty-nine thousand, four hundred forty-nine".