22233457 has 2 divisors, whose sum is σ = 22233458. Its totient is φ = 22233456.

The previous prime is 22233443. The next prime is 22233461. The reversal of 22233457 is 75433222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14145121 + 8088336 = 3761^2 + 2844^2 .

It is a cyclic number.

It is not a de Polignac number, because 22233457 - 2²³ = 13844849 is a prime.

It is a super-2 number, since 2×22233457² = 988653220341698, which contains 22 as substring.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (22233427) 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, 11116728 + 11116729.

It is an arithmetic number, because the mean of its divisors is an integer number (11116729).

Almost surely, 2^22233457 is an apocalyptic number.

It is an amenable number.

22233457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22233457 is an equidigital number, since it uses as much as digits as its factorization.

22233457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 28.

The square root of 22233457 is about 4715.2366854698. The cubic root of 22233457 is about 281.1915926779.

Adding to 22233457 its reverse (75433222), we get a palindrome (97666679).

The spelling of 22233457 in words is "twenty-two million, two hundred thirty-three thousand, four hundred fifty-seven".