818479242 has 120 divisors (see below), whose sum is σ = 2226682656. Its totient is φ = 223633872.

The previous prime is 818479241. The next prime is 818479279. The reversal of 818479242 is 242974818.

It is not an unprimeable number, because it can be changed into a prime (818479241) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 180333 + ... + 184815.

Almost surely, 2^818479242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 818479242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1113341328).

818479242 is an abundant number, since it is smaller than the sum of its proper divisors (1408203414).

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

818479242 is a wasteful number, since it uses less digits than its factorization.

818479242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534 (or 4518 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 818479242 is about 28609.0762171728. The cubic root of 818479242 is about 935.4111804516.

The spelling of 818479242 in words is "eight hundred eighteen million, four hundred seventy-nine thousand, two hundred forty-two".