43869413 has 4 divisors (see below), whose sum is σ = 50136480. Its totient is φ = 37602348.

The previous prime is 43869407. The next prime is 43869421. The reversal of 43869413 is 31496834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43869413 - 2¹² = 43865317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43869443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3133523 + ... + 3133536.

It is an arithmetic number, because the mean of its divisors is an integer number (12534120).

Almost surely, 2^43869413 is an apocalyptic number.

It is an amenable number.

43869413 is a deficient number, since it is larger than the sum of its proper divisors (6267067).

43869413 is an equidigital number, since it uses as much as digits as its factorization.

43869413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6267066.

The product of its digits is 62208, while the sum is 38.

The square root of 43869413 is about 6623.3989008665. The cubic root of 43869413 is about 352.6852316885.

The spelling of 43869413 in words is "forty-three million, eight hundred sixty-nine thousand, four hundred thirteen".