43424394 has 16 divisors (see below), whose sum is σ = 93529632. Its totient is φ = 13361328.

The previous prime is 43424393. The next prime is 43424417. The reversal of 43424394 is 49342434.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (43424393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278284 + ... + 278439.

It is an arithmetic number, because the mean of its divisors is an integer number (5845602).

Almost surely, 2^43424394 is an apocalyptic number.

43424394 is an abundant number, since it is smaller than the sum of its proper divisors (50105238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43424394 is a wasteful number, since it uses less digits than its factorization.

43424394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556741.

The product of its digits is 41472, while the sum is 33.

The square root of 43424394 is about 6589.7188103894. The cubic root of 43424394 is about 351.4886093756.

The spelling of 43424394 in words is "forty-three million, four hundred twenty-four thousand, three hundred ninety-four".