146643446 has 8 divisors (see below), whose sum is σ = 229528944. Its totient is φ = 70133800.

The previous prime is 146643437. The next prime is 146643449. The reversal of 146643446 is 644346641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146643449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1593905 + ... + 1593996.

It is an arithmetic number, because the mean of its divisors is an integer number (28691118).

Almost surely, 2^146643446 is an apocalyptic number.

146643446 is a deficient number, since it is larger than the sum of its proper divisors (82885498).

146643446 is a wasteful number, since it uses less digits than its factorization.

146643446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187926.

The product of its digits is 165888, while the sum is 38.

The square root of 146643446 is about 12109.6426867187. The cubic root of 146643446 is about 527.3361601936.

The spelling of 146643446 in words is "one hundred forty-six million, six hundred forty-three thousand, four hundred forty-six".