4400069 has 2 divisors, whose sum is σ = 4400070. Its totient is φ = 4400068.

The previous prime is 4400041. The next prime is 4400101. The reversal of 4400069 is 9600044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4251844 + 148225 = 2062^2 + 385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4400069 is a prime.

It is a super-2 number, since 2×4400069² = 38721214409522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4400269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200034 + 2200035.

It is an arithmetic number, because the mean of its divisors is an integer number (2200035).

Almost surely, 2^4400069 is an apocalyptic number.

It is an amenable number.

4400069 is a deficient number, since it is larger than the sum of its proper divisors (1).

4400069 is an equidigital number, since it uses as much as digits as its factorization.

4400069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4400069 is about 2097.6341435055. The cubic root of 4400069 is about 163.8651106788.

The spelling of 4400069 in words is "four million, four hundred thousand, sixty-nine".