43856426 has 4 divisors (see below), whose sum is σ = 65784642. Its totient is φ = 21928212.

The previous prime is 43856419. The next prime is 43856443. The reversal of 43856426 is 62465834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62465834 = 2 ⋅31232917.

It can be written as a sum of positive squares in only one way, i.e., 29149201 + 14707225 = 5399^2 + 3835^2 .

It is a super-2 number, since 2×43856426² = 3846772202986952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 43856426.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10964105 + ... + 10964108.

Almost surely, 2^43856426 is an apocalyptic number.

43856426 is a deficient number, since it is larger than the sum of its proper divisors (21928216).

43856426 is a wasteful number, since it uses less digits than its factorization.

43856426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21928215.

The product of its digits is 138240, while the sum is 38.

The square root of 43856426 is about 6622.4184404189. The cubic root of 43856426 is about 352.6504255457.

The spelling of 43856426 in words is "forty-three million, eight hundred fifty-six thousand, four hundred twenty-six".