1157418 has 12 divisors (see below), whose sum is σ = 2507778. Its totient is φ = 385800.

The previous prime is 1157413. The next prime is 1157437. The reversal of 1157418 is 8147511.

It can be written as a sum of positive squares in only one way, i.e., 1046529 + 110889 = 1023^2 + 333^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1157391 and 1157400.

It is not an unprimeable number, because it can be changed into a prime (1157413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32133 + ... + 32168.

2^1157418 is an apocalyptic number.

1157418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1157418 is an abundant number, since it is smaller than the sum of its proper divisors (1350360).

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

1157418 is a wasteful number, since it uses less digits than its factorization.

1157418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64309 (or 64306 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 1157418 is about 1075.8336302607. The cubic root of 1157418 is about 104.9937411235.

The spelling of 1157418 in words is "one million, one hundred fifty-seven thousand, four hundred eighteen".