449858136 has 256 divisors, whose sum is σ = 1501516800. Its totient is φ = 108988416.

The previous prime is 449858113. The next prime is 449858137. The reversal of 449858136 is 631858944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449858137) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1535206 + ... + 1535498.

It is an arithmetic number, because the mean of its divisors is an integer number (5865300).

Almost surely, 2^449858136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 449858136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750758400).

449858136 is an abundant number, since it is smaller than the sum of its proper divisors (1051658664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449858136 is a wasteful number, since it uses less digits than its factorization.

449858136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 374 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 449858136 is about 21209.8594054746. The cubic root of 449858136 is about 766.2288967289.

The spelling of 449858136 in words is "four hundred forty-nine million, eight hundred fifty-eight thousand, one hundred thirty-six".