240728147 has 16 divisors (see below), whose sum is σ = 271434240. Its totient is φ = 211596000.

The previous prime is 240728093. The next prime is 240728153. The reversal of 240728147 is 741827042.

It is a happy number.

240728147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 240728147 - 2¹² = 240724051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240728447) 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, 45254 + ... + 50292.

It is an arithmetic number, because the mean of its divisors is an integer number (16964640).

Almost surely, 2^240728147 is an apocalyptic number.

240728147 is a deficient number, since it is larger than the sum of its proper divisors (30706093).

240728147 is a wasteful number, since it uses less digits than its factorization.

240728147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 240728147 is about 15515.4164301188. The cubic root of 240728147 is about 622.0743450111.

The spelling of 240728147 in words is "two hundred forty million, seven hundred twenty-eight thousand, one hundred forty-seven".