240228720 has 80 divisors (see below), whose sum is σ = 827461920. Its totient is φ = 64060416.

The previous prime is 240228719. The next prime is 240228731. The reversal of 240228720 is 27822042.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 53449 + ... + 57768.

It is an arithmetic number, because the mean of its divisors is an integer number (10343274).

Almost surely, 2^240228720 is an apocalyptic number.

240228720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240228720 is an abundant number, since it is smaller than the sum of its proper divisors (587233200).

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

240228720 is a wasteful number, since it uses less digits than its factorization.

240228720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111239 (or 111227 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 240228720 is about 15499.3135331859. The cubic root of 240228720 is about 621.6438513510.

The spelling of 240228720 in words is "two hundred forty million, two hundred twenty-eight thousand, seven hundred twenty".