43870022 has 32 divisors (see below), whose sum is σ = 78127104. Its totient is φ = 18079200.

The previous prime is 43870009. The next prime is 43870027. The reversal of 43870022 is 22007834.

It is a super-4 number, since 4×43870022⁴ (a number of 32 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43869973 and 43870000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43870027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117428 + ... + 117800.

It is an arithmetic number, because the mean of its divisors is an integer number (2441472).

Almost surely, 2^43870022 is an apocalyptic number.

43870022 is a deficient number, since it is larger than the sum of its proper divisors (34257082).

43870022 is a wasteful number, since it uses less digits than its factorization.

43870022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 43870022 is about 6623.4448740818. Note that the first 3 decimals coincide. The cubic root of 43870022 is about 352.6868636860.

Adding to 43870022 its reverse (22007834), we get a palindrome (65877856).

The spelling of 43870022 in words is "forty-three million, eight hundred seventy thousand, twenty-two".