240902820 has 36 divisors (see below), whose sum is σ = 730739100. Its totient is φ = 64240704.

The previous prime is 240902807. The next prime is 240902821. The reversal of 240902820 is 28209042.

240902820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 57517056 + 183385764 = 7584^2 + 13542^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (240902821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 668995 + ... + 669354.

Almost surely, 2^240902820 is an apocalyptic number.

240902820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240902820 is an abundant number, since it is smaller than the sum of its proper divisors (489836280).

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

240902820 is a wasteful number, since it uses less digits than its factorization.

240902820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338364 (or 1338359 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 240902820 is about 15521.0444236205. The cubic root of 240902820 is about 622.2247682483.

The spelling of 240902820 in words is "two hundred forty million, nine hundred two thousand, eight hundred twenty".