146444664 has 64 divisors (see below), whose sum is σ = 401047200. Its totient is φ = 44355584.

The previous prime is 146444663. The next prime is 146444677. The reversal of 146444664 is 466444641.

It is a super-2 number, since 2×146444664² = 42892079228145792, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146444663) by changing a digit.

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, 5644 + ... + 18020.

Almost surely, 2^146444664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146444664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200523600).

146444664 is an abundant number, since it is smaller than the sum of its proper divisors (254602536).

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

146444664 is a wasteful number, since it uses less digits than its factorization.

146444664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12432 (or 12428 counting only the distinct ones).

The product of its digits is 221184, while the sum is 39.

The square root of 146444664 is about 12101.4323119208. The cubic root of 146444664 is about 527.0977762308.

The spelling of 146444664 in words is "one hundred forty-six million, four hundred forty-four thousand, six hundred sixty-four".