40843420 has 12 divisors (see below), whose sum is σ = 85771224. Its totient is φ = 16337360.

The previous prime is 40843417. The next prime is 40843447. The reversal of 40843420 is 2434804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021066 + ... + 1021105.

It is an arithmetic number, because the mean of its divisors is an integer number (7147602).

Almost surely, 2^40843420 is an apocalyptic number.

It is an amenable number.

40843420 is an abundant number, since it is smaller than the sum of its proper divisors (44927804).

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

40843420 is a wasteful number, since it uses less digits than its factorization.

40843420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042180 (or 2042178 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 40843420 is about 6390.8856976166. The cubic root of 40843420 is about 344.3822031908.

The spelling of 40843420 in words is "forty million, eight hundred forty-three thousand, four hundred twenty".