440920801 has 2 divisors, whose sum is σ = 440920802. Its totient is φ = 440920800.

The previous prime is 440920793. The next prime is 440920807. The reversal of 440920801 is 108029044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342435025 + 98485776 = 18505^2 + 9924^2 .

It is a cyclic number.

It is not a de Polignac number, because 440920801 - 2³ = 440920793 is a prime.

It is a super-2 number, since 2×440920801² = 388822305508963202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 440920801.

It is not a weakly prime, because it can be changed into another prime (440920807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220460400 + 220460401.

It is an arithmetic number, because the mean of its divisors is an integer number (220460401).

Almost surely, 2^440920801 is an apocalyptic number.

It is an amenable number.

440920801 is a deficient number, since it is larger than the sum of its proper divisors (1).

440920801 is an equidigital number, since it uses as much as digits as its factorization.

440920801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 440920801 is about 20998.1142248536. The cubic root of 440920801 is about 761.1206925337.

Adding to 440920801 its reverse (108029044), we get a palindrome (548949845).

The spelling of 440920801 in words is "four hundred forty million, nine hundred twenty thousand, eight hundred one".