146868444 has 48 divisors (see below), whose sum is σ = 381964800. Its totient is φ = 48802608.

The previous prime is 146868439. The next prime is 146868497. The reversal of 146868444 is 444868641.

146868444 is a `hidden beast` number, since 146 + 8 + 68 + 444 = 666.

It is a super-2 number, since 2×146868444² = 43140679685962272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 146868444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35517 + ... + 39435.

It is an arithmetic number, because the mean of its divisors is an integer number (7957600).

Almost surely, 2^146868444 is an apocalyptic number.

It is an amenable number.

146868444 is an abundant number, since it is smaller than the sum of its proper divisors (235096356).

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

146868444 is a wasteful number, since it uses less digits than its factorization.

146868444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279 (or 4271 counting only the distinct ones).

The product of its digits is 589824, while the sum is 45.

The square root of 146868444 is about 12118.9291606148. The cubic root of 146868444 is about 527.6057232145.

The spelling of 146868444 in words is "one hundred forty-six million, eight hundred sixty-eight thousand, four hundred forty-four".