220240037 has 2 divisors, whose sum is σ = 220240038. Its totient is φ = 220240036.

The previous prime is 220239997. The next prime is 220240057. The reversal of 220240037 is 730042022.

It is a happy number.

It is an a-pointer prime, because the next prime (220240057) can be obtained adding 220240037 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143256961 + 76983076 = 11969^2 + 8774^2 .

It is a cyclic number.

It is not a de Polignac number, because 220240037 - 2¹⁸ = 219977893 is a prime.

It is a super-2 number, since 2×220240037² = 97011347795522738, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220240057) by changing a digit.

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 as a sum of consecutive naturals, namely, 110120018 + 110120019.

It is an arithmetic number, because the mean of its divisors is an integer number (110120019).

Almost surely, 2^220240037 is an apocalyptic number.

It is an amenable number.

220240037 is a deficient number, since it is larger than the sum of its proper divisors (1).

220240037 is an equidigital number, since it uses as much as digits as its factorization.

220240037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 220240037 is about 14840.4864138612. The cubic root of 220240037 is about 603.9005481111.

Adding to 220240037 its reverse (730042022), we get a palindrome (950282059).

The spelling of 220240037 in words is "two hundred twenty million, two hundred forty thousand, thirty-seven".