146478980 has 24 divisors (see below), whose sum is σ = 323796480. Its totient is φ = 55507680.

The previous prime is 146478979. The next prime is 146478989. The reversal of 146478980 is 89874641.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (146478989) 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 7 ways as a sum of consecutive naturals, for example, 192356 + ... + 193115.

It is an arithmetic number, because the mean of its divisors is an integer number (13491520).

Almost surely, 2^146478980 is an apocalyptic number.

146478980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146478980 is an abundant number, since it is smaller than the sum of its proper divisors (177317500).

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

146478980 is a wasteful number, since it uses less digits than its factorization.

146478980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385499 (or 385497 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 146478980 is about 12102.8500775644. The cubic root of 146478980 is about 527.1389441690.

The spelling of 146478980 in words is "one hundred forty-six million, four hundred seventy-eight thousand, nine hundred eighty".