43628319 has 12 divisors (see below), whose sum is σ = 72021456. Its totient is φ = 24930432.

The previous prime is 43628311. The next prime is 43628339. The reversal of 43628319 is 91382634.

It is not a de Polignac number, because 43628319 - 2³ = 43628311 is a prime.

It is a super-2 number, since 2×43628319² = 3806860437531522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43628311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346194 + ... + 346319.

It is an arithmetic number, because the mean of its divisors is an integer number (6001788).

Almost surely, 2^43628319 is an apocalyptic number.

43628319 is a deficient number, since it is larger than the sum of its proper divisors (28393137).

43628319 is a wasteful number, since it uses less digits than its factorization.

43628319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692526 (or 692523 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 43628319 is about 6605.1736540382. The cubic root of 43628319 is about 352.0379580924.

The spelling of 43628319 in words is "forty-three million, six hundred twenty-eight thousand, three hundred nineteen".