1208728158 has 32 divisors (see below), whose sum is σ = 2643242112. Its totient is φ = 365445600.

The previous prime is 1208728061. The next prime is 1208728163. The reversal of 1208728158 is 8518278021.

It is a super-2 number, since 2×1208728158² = 2922047519884145928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8568 + ... + 49908.

It is an arithmetic number, because the mean of its divisors is an integer number (82601316).

Almost surely, 2^1208728158 is an apocalyptic number.

1208728158 is an abundant number, since it is smaller than the sum of its proper divisors (1434513954).

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

1208728158 is a wasteful number, since it uses less digits than its factorization.

1208728158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41800.

The product of its (nonzero) digits is 71680, while the sum is 42.

The square root of 1208728158 is about 34766.7680119967. The cubic root of 1208728158 is about 1065.2287511452.

It can be divided in two parts, 120 and 8728158, that added together give a palindrome (8728278).

The spelling of 1208728158 in words is "one billion, two hundred eight million, seven hundred twenty-eight thousand, one hundred fifty-eight".