146947944 has 128 divisors (see below), whose sum is σ = 441262080. Its totient is φ = 40185600.

The previous prime is 146947939. The next prime is 146947987. The reversal of 146947944 is 449749641.

It is a junction number, because it is equal to n+sod(n) for n = 146947893 and 146947902.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 160849 + ... + 161759.

It is an arithmetic number, because the mean of its divisors is an integer number (3447360).

Almost surely, 2^146947944 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 146947944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220631040).

146947944 is an abundant number, since it is smaller than the sum of its proper divisors (294314136).

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

146947944 is a wasteful number, since it uses less digits than its factorization.

146947944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 987 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 146947944 is about 12122.2087096370. The cubic root of 146947944 is about 527.7009038353.

The spelling of 146947944 in words is "one hundred forty-six million, nine hundred forty-seven thousand, nine hundred forty-four".