43749152 has 12 divisors (see below), whose sum is σ = 86131206. Its totient is φ = 21874560.

The previous prime is 43749131. The next prime is 43749161. The reversal of 43749152 is 25194734.

It can be written as a sum of positive squares in only one way, i.e., 39891856 + 3857296 = 6316^2 + 1964^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683549 + ... + 683612.

Almost surely, 2^43749152 is an apocalyptic number.

It is an amenable number.

43749152 is a deficient number, since it is larger than the sum of its proper divisors (42382054).

43749152 is a wasteful number, since it uses less digits than its factorization.

43749152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367171 (or 1367163 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 43749152 is about 6614.3141745762. The cubic root of 43749152 is about 352.3626599755.

The spelling of 43749152 in words is "forty-three million, seven hundred forty-nine thousand, one hundred fifty-two".