449253851 has 16 divisors (see below), whose sum is σ = 470903328. Its totient is φ = 428236800.

The previous prime is 449253751. The next prime is 449253853. The reversal of 449253851 is 158352944.

It is not a de Polignac number, because 449253851 - 2²² = 445059547 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449253799 and 449253808.

It is not an unprimeable number, because it can be changed into a prime (449253853) 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, 329411 + ... + 330771.

It is an arithmetic number, because the mean of its divisors is an integer number (29431458).

Almost surely, 2^449253851 is an apocalyptic number.

449253851 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

449253851 is a deficient number, since it is larger than the sum of its proper divisors (21649477).

449253851 is a wasteful number, since it uses less digits than its factorization.

449253851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582.

The product of its digits is 172800, while the sum is 41.

The square root of 449253851 is about 21195.6092387079. The cubic root of 449253851 is about 765.8856565912.

The spelling of 449253851 in words is "four hundred forty-nine million, two hundred fifty-three thousand, eight hundred fifty-one".