4399990801 has 2 divisors, whose sum is σ = 4399990802. Its totient is φ = 4399990800.

The previous prime is 4399990757. The next prime is 4399990823. The reversal of 4399990801 is 1080999934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4121768401 + 278222400 = 64201^2 + 16680^2 .

It is a cyclic number.

It is not a de Polignac number, because 4399990801 - 2²¹ = 4397893649 is a prime.

It is not a weakly prime, because it can be changed into another prime (4399990841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2199995400 + 2199995401.

It is an arithmetic number, because the mean of its divisors is an integer number (2199995401).

Almost surely, 2^4399990801 is an apocalyptic number.

It is an amenable number.

4399990801 is a deficient number, since it is larger than the sum of its proper divisors (1).

4399990801 is an equidigital number, since it uses as much as digits as its factorization.

4399990801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 52.

The square root of 4399990801 is about 66332.4264670003. The cubic root of 4399990801 is about 1638.6413992404.

The spelling of 4399990801 in words is "four billion, three hundred ninety-nine million, nine hundred ninety thousand, eight hundred one".