1040224397 has 2 divisors, whose sum is σ = 1040224398. Its totient is φ = 1040224396.

The previous prime is 1040224343. The next prime is 1040224421. The reversal of 1040224397 is 7934220401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 734464201 + 305760196 = 27101^2 + 17486^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040224397 - 2²⁴ = 1023447181 is a prime.

It is a super-2 number, since 2×1040224397² = 2164133592228027218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040221397) 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, 520112198 + 520112199.

It is an arithmetic number, because the mean of its divisors is an integer number (520112199).

Almost surely, 2^1040224397 is an apocalyptic number.

It is an amenable number.

1040224397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040224397 is an equidigital number, since it uses as much as digits as its factorization.

1040224397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 1040224397 is about 32252.5099333370. The cubic root of 1040224397 is about 1013.2322671475.

Adding to 1040224397 its reverse (7934220401), we get a palindrome (8974444798).

The spelling of 1040224397 in words is "one billion, forty million, two hundred twenty-four thousand, three hundred ninety-seven".