244390397 has 2 divisors, whose sum is σ = 244390398. Its totient is φ = 244390396.

The previous prime is 244390373. The next prime is 244390409. The reversal of 244390397 is 793093442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126472516 + 117917881 = 11246^2 + 10859^2 .

It is a cyclic number.

It is not a de Polignac number, because 244390397 - 2¹⁰ = 244389373 is a prime.

It is a super-2 number, since 2×244390397² = 119453332291635218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244390357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122195198 + 122195199.

It is an arithmetic number, because the mean of its divisors is an integer number (122195199).

Almost surely, 2^244390397 is an apocalyptic number.

It is an amenable number.

244390397 is a deficient number, since it is larger than the sum of its proper divisors (1).

244390397 is an equidigital number, since it uses as much as digits as its factorization.

244390397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 244390397 is about 15632.9906607789. The cubic root of 244390397 is about 625.2130661296.

The spelling of 244390397 in words is "two hundred forty-four million, three hundred ninety thousand, three hundred ninety-seven".