43157638 has 16 divisors (see below), whose sum is σ = 66843216. Its totient is φ = 20885760.

The previous prime is 43157627. The next prime is 43157641. The reversal of 43157638 is 83675134.

It is a junction number, because it is equal to n+sod(n) for n = 43157597 and 43157606.

It is a congruent number.

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, 7498 + ... + 11938.

It is an arithmetic number, because the mean of its divisors is an integer number (4177701).

Almost surely, 2^43157638 is an apocalyptic number.

43157638 is a deficient number, since it is larger than the sum of its proper divisors (23685578).

43157638 is a wasteful number, since it uses less digits than its factorization.

43157638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4599.

The product of its digits is 60480, while the sum is 37.

The square root of 43157638 is about 6569.4473131307. The cubic root of 43157638 is about 350.7673991877.

The spelling of 43157638 in words is "forty-three million, one hundred fifty-seven thousand, six hundred thirty-eight".