43420146 has 32 divisors (see below), whose sum is σ = 108269568. Its totient is φ = 11277840.

The previous prime is 43420133. The next prime is 43420199. The reversal of 43420146 is 64102434.

43420146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43420146² = 3770618157322632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46530 + ... + 47453.

It is an arithmetic number, because the mean of its divisors is an integer number (3383424).

Almost surely, 2^43420146 is an apocalyptic number.

43420146 is an abundant number, since it is smaller than the sum of its proper divisors (64849422).

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

43420146 is a wasteful number, since it uses less digits than its factorization.

43420146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94006.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 43420146 is about 6589.3964822281. The cubic root of 43420146 is about 351.4771475208.

The spelling of 43420146 in words is "forty-three million, four hundred twenty thousand, one hundred forty-six".