157843844 has 24 divisors (see below), whose sum is σ = 297277848. Its totient is φ = 73059840.

The previous prime is 157843823. The next prime is 157843853. The reversal of 157843844 is 448348751.

It can be written as a sum of positive squares in 4 ways, for example, as 6061444 + 151782400 = 2462^2 + 12320^2 .

It is a junction number, because it is equal to n+sod(n) for n = 157843795 and 157843804.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14879 + ... + 23174.

It is an arithmetic number, because the mean of its divisors is an integer number (12386577).

Almost surely, 2^157843844 is an apocalyptic number.

It is an amenable number.

157843844 is a deficient number, since it is larger than the sum of its proper divisors (139434004).

157843844 is a wasteful number, since it uses less digits than its factorization.

157843844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38135 (or 38133 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 157843844 is about 12563.5920022898. The cubic root of 157843844 is about 540.4338580033.

The spelling of 157843844 in words is "one hundred fifty-seven million, eight hundred forty-three thousand, eight hundred forty-four".