43520642 has 16 divisors (see below), whose sum is σ = 72424800. Its totient is φ = 19446240.

The previous prime is 43520641. The next prime is 43520647. The reversal of 43520642 is 24602534.

It is not an unprimeable number, because it can be changed into a prime (43520641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15467 + ... + 18062.

It is an arithmetic number, because the mean of its divisors is an integer number (4526550).

Almost surely, 2^43520642 is an apocalyptic number.

43520642 is a deficient number, since it is larger than the sum of its proper divisors (28904158).

43520642 is a wasteful number, since it uses less digits than its factorization.

43520642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33601.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 43520642 is about 6597.0176595186. The cubic root of 43520642 is about 351.7481033994.

The spelling of 43520642 in words is "forty-three million, five hundred twenty thousand, six hundred forty-two".