43856345 has 48 divisors (see below), whose sum is σ = 62612352. Its totient is φ = 29352960.

The previous prime is 43856341. The next prime is 43856353. The reversal of 43856345 is 54365834.

It is not a de Polignac number, because 43856345 - 2² = 43856341 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43856299 and 43856308.

It is not an unprimeable number, because it can be changed into a prime (43856341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 617660 + ... + 617730.

It is an arithmetic number, because the mean of its divisors is an integer number (1304424).

Almost surely, 2^43856345 is an apocalyptic number.

It is an amenable number.

43856345 is a deficient number, since it is larger than the sum of its proper divisors (18756007).

43856345 is a wasteful number, since it uses less digits than its factorization.

43856345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 149 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 43856345 is about 6622.4123248254. The cubic root of 43856345 is about 352.6502084380.

The spelling of 43856345 in words is "forty-three million, eight hundred fifty-six thousand, three hundred forty-five".