222040457 has 2 divisors, whose sum is σ = 222040458. Its totient is φ = 222040456.

The previous prime is 222040411. The next prime is 222040471. The reversal of 222040457 is 754040222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133379401 + 88661056 = 11549^2 + 9416^2 .

It is a cyclic number.

It is not a de Polignac number, because 222040457 - 2¹⁴ = 222024073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222040057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111020228 + 111020229.

It is an arithmetic number, because the mean of its divisors is an integer number (111020229).

Almost surely, 2^222040457 is an apocalyptic number.

It is an amenable number.

222040457 is a deficient number, since it is larger than the sum of its proper divisors (1).

222040457 is an equidigital number, since it uses as much as digits as its factorization.

222040457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 222040457 is about 14901.0220119292. The cubic root of 222040457 is about 605.5416745664.

Adding to 222040457 its reverse (754040222), we get a palindrome (976080679).

The spelling of 222040457 in words is "two hundred twenty-two million, forty thousand, four hundred fifty-seven".