240947220 has 24 divisors (see below), whose sum is σ = 674652384. Its totient is φ = 64252576.

The previous prime is 240947197. The next prime is 240947237. The reversal of 240947220 is 22749042.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2007834 + ... + 2007953.

It is an arithmetic number, because the mean of its divisors is an integer number (28110516).

Almost surely, 2^240947220 is an apocalyptic number.

240947220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240947220 is an abundant number, since it is smaller than the sum of its proper divisors (433705164).

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

240947220 is a wasteful number, since it uses less digits than its factorization.

240947220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4015799 (or 4015797 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 240947220 is about 15522.4746738399. The cubic root of 240947220 is about 622.2629926280.

The spelling of 240947220 in words is "two hundred forty million, nine hundred forty-seven thousand, two hundred twenty".