3220040028437 has 2 divisors, whose sum is σ = 3220040028438. Its totient is φ = 3220040028436.

The previous prime is 3220040028397. The next prime is 3220040028493. The reversal of 3220040028437 is 7348200400223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1944599571121 + 1275440457316 = 1394489^2 + 1129354^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220040028437 - 2²² = 3220035834133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3220040028397 and 3220040028406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3220049028437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610020014218 + 1610020014219.

It is an arithmetic number, because the mean of its divisors is an integer number (1610020014219).

Almost surely, 2^{3220040028437} is an apocalyptic number.

It is an amenable number.

3220040028437 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220040028437 is an equidigital number, since it uses as much as digits as its factorization.

3220040028437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 35.

The spelling of 3220040028437 in words is "three trillion, two hundred twenty billion, forty million, twenty-eight thousand, four hundred thirty-seven".