146019240 has 128 divisors (see below), whose sum is σ = 496108800. Its totient is φ = 38188800.

The previous prime is 146019233. The next prime is 146019257. The reversal of 146019240 is 42910641.

146019240 is a `hidden beast` number, since 14 + 601 + 9 + 2 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55965 + ... + 58515.

It is an arithmetic number, because the mean of its divisors is an integer number (3875850).

Almost surely, 2^146019240 is an apocalyptic number.

146019240 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 146019240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248054400).

146019240 is an abundant number, since it is smaller than the sum of its proper divisors (350089560).

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

146019240 is a wasteful number, since it uses less digits than its factorization.

146019240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624 (or 2614 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 146019240 is about 12083.8421042316. The cubic root of 146019240 is about 526.5868721354.

Adding to 146019240 its reverse (42910641), we get a palindrome (188929881).

The spelling of 146019240 in words is "one hundred forty-six million, nineteen thousand, two hundred forty".