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499974144 = 21632543
BaseRepresentation
bin11101110011010…
…000000000000000
31021211210022120220
4131303100000000
52010443133034
6121340103040
715250465365
oct3563200000
91254708526
10499974144
11237249a7a
1211b534a80
137c7763b7
144a58a46c
152dd60749
hex1dcd0000

499974144 has 68 divisors (see below), whose sum is σ = 1333778496. Its totient is φ = 166592512.

The previous prime is 499974121. The next prime is 499974149. The reversal of 499974144 is 441479994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499974149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195337 + ... + 197879.

Almost surely, 2499974144 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 499974144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666889248).

499974144 is an abundant number, since it is smaller than the sum of its proper divisors (833804352).

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

499974144 is an frugal number, since it uses more digits than its factorization.

499974144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578 (or 2548 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 499974144 is about 22360.1016097870. The cubic root of 499974144 is about 793.6868444677.

The spelling of 499974144 in words is "four hundred ninety-nine million, nine hundred seventy-four thousand, one hundred forty-four".