148238728 has 16 divisors (see below), whose sum is σ = 303215760. Its totient is φ = 67381200.

The previous prime is 148238689. The next prime is 148238737. The reversal of 148238728 is 827832841.

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 3 ways as a sum of consecutive naturals, for example, 842178 + ... + 842353.

It is an arithmetic number, because the mean of its divisors is an integer number (18950985).

Almost surely, 2^148238728 is an apocalyptic number.

It is an amenable number.

148238728 is an abundant number, since it is smaller than the sum of its proper divisors (154977032).

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

148238728 is a wasteful number, since it uses less digits than its factorization.

148238728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684548 (or 1684544 counting only the distinct ones).

The product of its digits is 172032, while the sum is 43.

The square root of 148238728 is about 12175.3327675263. The cubic root of 148238728 is about 529.2415019327.

The spelling of 148238728 in words is "one hundred forty-eight million, two hundred thirty-eight thousand, seven hundred twenty-eight".