146239984 has 80 divisors (see below), whose sum is σ = 336380256. Its totient is φ = 60825600.

The previous prime is 146239969. The next prime is 146239991. The reversal of 146239984 is 489932641.

It is a super-2 number, since 2×146239984² = 42772265840640512, which contains 22 as substring.

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, 110044 + ... + 111364.

Almost surely, 2^146239984 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 146239984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168190128).

146239984 is an abundant number, since it is smaller than the sum of its proper divisors (190140272).

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

146239984 is a wasteful number, since it uses less digits than its factorization.

146239984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394 (or 1388 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 146239984 is about 12092.9725047236. The cubic root of 146239984 is about 526.8520937279.

The spelling of 146239984 in words is "one hundred forty-six million, two hundred thirty-nine thousand, nine hundred eighty-four".