1157434650 has 96 divisors (see below), whose sum is σ = 3196670400. Its totient is φ = 307944000.

The previous prime is 1157434627. The next prime is 1157434651. The reversal of 1157434650 is 564347511.

1157434650 is a `hidden beast` number, since 1 + 1 + 574 + 34 + 6 + 50 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1157434651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 889000 + ... + 890300.

It is an arithmetic number, because the mean of its divisors is an integer number (33298650).

Almost surely, 2^1157434650 is an apocalyptic number.

1157434650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1157434650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598335200).

1157434650 is an abundant number, since it is smaller than the sum of its proper divisors (2039235750).

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

1157434650 is a wasteful number, since it uses less digits than its factorization.

1157434650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981 (or 1970 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 1157434650 is about 34021.0912523393. The cubic root of 1157434650 is about 1049.9424458249.

The spelling of 1157434650 in words is "one billion, one hundred fifty-seven million, four hundred thirty-four thousand, six hundred fifty".