43398942 has 16 divisors (see below), whose sum is σ = 86873472. Its totient is φ = 14453720.

The previous prime is 43398937. The next prime is 43398961. The reversal of 43398942 is 24989334.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 43398894 and 43398903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6673 + ... + 11459.

It is an arithmetic number, because the mean of its divisors is an integer number (5429592).

Almost surely, 2^43398942 is an apocalyptic number.

43398942 is an abundant number, since it is smaller than the sum of its proper divisors (43474530).

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

43398942 is a wasteful number, since it uses less digits than its factorization.

43398942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303.

The product of its digits is 186624, while the sum is 42.

The square root of 43398942 is about 6587.7873371869. The cubic root of 43398942 is about 351.4199241992.

The spelling of 43398942 in words is "forty-three million, three hundred ninety-eight thousand, nine hundred forty-two".