43157224 has 32 divisors (see below), whose sum is σ = 88568640. Its totient is φ = 19552000.

The previous prime is 43157221. The next prime is 43157243. The reversal of 43157224 is 42275134.

It is a junction number, because it is equal to n+sod(n) for n = 43157192 and 43157201.

It is not an unprimeable number, because it can be changed into a prime (43157221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34677 + ... + 35899.

It is an arithmetic number, because the mean of its divisors is an integer number (2767770).

Almost surely, 2^43157224 is an apocalyptic number.

43157224 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

43157224 is an abundant number, since it is smaller than the sum of its proper divisors (45411416).

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

43157224 is a wasteful number, since it uses less digits than its factorization.

43157224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641 (or 1637 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 43157224 is about 6569.4158035551. The cubic root of 43157224 is about 350.7662775773.

The spelling of 43157224 in words is "forty-three million, one hundred fifty-seven thousand, two hundred twenty-four".