43394454 has 36 divisors (see below), whose sum is σ = 97662084. Its totient is φ = 14460444.

The previous prime is 43394453. The next prime is 43394459. The reversal of 43394454 is 45449334.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43394453) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11469 + ... + 14775.

Almost surely, 2^43394454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43394454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48831042).

43394454 is an abundant number, since it is smaller than the sum of its proper divisors (54267630).

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

43394454 is an frugal number, since it uses more digits than its factorization.

43394454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333 (or 3312 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 43394454 is about 6587.4466980766. The cubic root of 43394454 is about 351.4078100253.

The spelling of 43394454 in words is "forty-three million, three hundred ninety-four thousand, four hundred fifty-four".