498778056 has 144 divisors (see below), whose sum is σ = 1614298140. Its totient is φ = 138620160.

The previous prime is 498778051. The next prime is 498778061. The reversal of 498778056 is 650877894.

498778056 is a `hidden beast` number, since 498 + 77 + 80 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (498778051) and next prime (498778061).

It can be written as a sum of positive squares in 2 ways, for example, as 401361156 + 97416900 = 20034^2 + 9870^2 .

It is a junction number, because it is equal to n+sod(n) for n = 498777993 and 498778011.

It is not an unprimeable number, because it can be changed into a prime (498778051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 128626 + ... + 132446.

Almost surely, 2^498778056 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 498778056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807149070).

498778056 is an abundant number, since it is smaller than the sum of its proper divisors (1115520084).

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

498778056 is a wasteful number, since it uses less digits than its factorization.

498778056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884 (or 3870 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 498778056 is about 22333.3395621882. The cubic root of 498778056 is about 793.0534268212.

The spelling of 498778056 in words is "four hundred ninety-eight million, seven hundred seventy-eight thousand, fifty-six".