815494848 has 280 divisors, whose sum is σ = 2646608880. Its totient is φ = 221276160.

The previous prime is 815494847. The next prime is 815494987. The reversal of 815494848 is 848494518.

It is a super-2 number, since 2×815494848² = 1330063694229086208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 815494848.

It is not an unprimeable number, because it can be changed into a prime (815494843) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13368738 + ... + 13368798.

Almost surely, 2^815494848 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 815494848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1323304440).

815494848 is an abundant number, since it is smaller than the sum of its proper divisors (1831114032).

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

815494848 is an equidigital number, since it uses as much as digits as its factorization.

815494848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 102 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 51.

The square root of 815494848 is about 28556.8704167666. The cubic root of 815494848 is about 934.2728761113.

The spelling of 815494848 in words is "eight hundred fifteen million, four hundred ninety-four thousand, eight hundred forty-eight".