1157444 has 6 divisors (see below), whose sum is σ = 2025534. Its totient is φ = 578720.

The previous prime is 1157437. The next prime is 1157449. The reversal of 1157444 is 4447511.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 12544 = 1070^2 + 112^2 .

It is a super-2 number, since 2×1157444² = 2679353226272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144677 + ... + 144684.

It is an arithmetic number, because the mean of its divisors is an integer number (337589).

2^1157444 is an apocalyptic number.

It is an amenable number.

1157444 is a deficient number, since it is larger than the sum of its proper divisors (868090).

1157444 is a wasteful number, since it uses less digits than its factorization.

1157444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289365 (or 289363 counting only the distinct ones).

The product of its digits is 2240, while the sum is 26.

The square root of 1157444 is about 1075.8457138456. The cubic root of 1157444 is about 104.9945273036.

The spelling of 1157444 in words is "one million, one hundred fifty-seven thousand, four hundred forty-four".