1157728314 has 32 divisors (see below), whose sum is σ = 2403213120. Its totient is φ = 371371392.

The previous prime is 1157728307. The next prime is 1157728381. The reversal of 1157728314 is 4138277511.

It is a happy number.

It is a Curzon 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, 42582 + ... + 64254.

It is an arithmetic number, because the mean of its divisors is an integer number (75100410).

Almost surely, 2^1157728314 is an apocalyptic number.

1157728314 is an abundant number, since it is smaller than the sum of its proper divisors (1245484806).

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

1157728314 is a wasteful number, since it uses less digits than its factorization.

1157728314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22014.

The product of its digits is 47040, while the sum is 39.

The square root of 1157728314 is about 34025.4068895583. The cubic root of 1157728314 is about 1050.0312353520.

The spelling of 1157728314 in words is "one billion, one hundred fifty-seven million, seven hundred twenty-eight thousand, three hundred fourteen".