146500440 has 64 divisors (see below), whose sum is σ = 442713600. Its totient is φ = 38781312.

The previous prime is 146500439. The next prime is 146500447. The reversal of 146500440 is 44005641.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 146500440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146500447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12289 + ... + 21071.

It is an arithmetic number, because the mean of its divisors is an integer number (6917400).

Almost surely, 2^146500440 is an apocalyptic number.

146500440 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 146500440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221356800).

146500440 is an abundant number, since it is smaller than the sum of its proper divisors (296213160).

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

146500440 is a wasteful number, since it uses less digits than its factorization.

146500440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8936 (or 8932 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 146500440 is about 12103.7366131290. The cubic root of 146500440 is about 527.1646858587.

The spelling of 146500440 in words is "one hundred forty-six million, five hundred thousand, four hundred forty".