146285280 has 288 divisors, whose sum is σ = 537788160. Its totient is φ = 36126720.

The previous prime is 146285263. The next prime is 146285281. The reversal of 146285280 is 82582641.

146285280 is a `hidden beast` number, since 1 + 4 + 628 + 5 + 28 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146285281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1294504 + ... + 1294616.

It is an arithmetic number, because the mean of its divisors is an integer number (1867320).

Almost surely, 2^146285280 is an apocalyptic number.

146285280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146285280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268894080).

146285280 is an abundant number, since it is smaller than the sum of its proper divisors (391502880).

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

146285280 is a wasteful number, since it uses less digits than its factorization.

146285280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 146285280 is about 12094.8451829695. The cubic root of 146285280 is about 526.9064833878.

The spelling of 146285280 in words is "one hundred forty-six million, two hundred eighty-five thousand, two hundred eighty".