815148336 has 80 divisors (see below), whose sum is σ = 2313066240. Its totient is φ = 246216960.

The previous prime is 815148319. The next prime is 815148337. The reversal of 815148336 is 633841518.

It is a junction number, because it is equal to n+sod(n) for n = 815148294 and 815148303.

It is not an unprimeable number, because it can be changed into a prime (815148337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1546 + ... + 40406.

It is an arithmetic number, because the mean of its divisors is an integer number (28913328).

Almost surely, 2^815148336 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 815148336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156533120).

815148336 is an abundant number, since it is smaller than the sum of its proper divisors (1497917904).

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

815148336 is a wasteful number, since it uses less digits than its factorization.

815148336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38914 (or 38908 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 815148336 is about 28550.8027207643. The cubic root of 815148336 is about 934.1405300364.

The spelling of 815148336 in words is "eight hundred fifteen million, one hundred forty-eight thousand, three hundred thirty-six".