240720052 has 6 divisors (see below), whose sum is σ = 421260098. Its totient is φ = 120360024.

The previous prime is 240720049. The next prime is 240720089. The reversal of 240720052 is 250027042.

It can be written as a sum of positive squares in only one way, i.e., 235131556 + 5588496 = 15334^2 + 2364^2 .

It is a super-2 number, since 2×240720052² = 115892286869765408, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 30090003 + ... + 30090010.

Almost surely, 2^240720052 is an apocalyptic number.

It is an amenable number.

240720052 is a deficient number, since it is larger than the sum of its proper divisors (180540046).

240720052 is a wasteful number, since it uses less digits than its factorization.

240720052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60180017 (or 60180015 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 240720052 is about 15515.1555583565. The cubic root of 240720052 is about 622.0673720718.

Adding to 240720052 its reverse (250027042), we get a palindrome (490747094).

The spelling of 240720052 in words is "two hundred forty million, seven hundred twenty thousand, fifty-two".