815429960 has 32 divisors (see below), whose sum is σ = 1839749760. Its totient is φ = 325277376.

The previous prime is 815429957. The next prime is 815430001. The reversal of 815429960 is 69924518.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13094 + ... + 42453.

It is an arithmetic number, because the mean of its divisors is an integer number (57492180).

Almost surely, 2^815429960 is an apocalyptic number.

It is an amenable number.

815429960 is an abundant number, since it is smaller than the sum of its proper divisors (1024319800).

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

815429960 is a wasteful number, since it uses less digits than its factorization.

815429960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55925 (or 55921 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 815429960 is about 28555.7342752730. The cubic root of 815429960 is about 934.2480957764.

The spelling of 815429960 in words is "eight hundred fifteen million, four hundred twenty-nine thousand, nine hundred sixty".