1010440401 has 4 divisors (see below), whose sum is σ = 1347253872. Its totient is φ = 673626932.

The previous prime is 1010440399. The next prime is 1010440427. The reversal of 1010440401 is 1040440101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1040440101 = 3 ⋅346813367.

It is a cyclic number.

It is not a de Polignac number, because 1010440401 - 2¹ = 1010440399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1010440481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168406731 + ... + 168406736.

It is an arithmetic number, because the mean of its divisors is an integer number (336813468).

Almost surely, 2^1010440401 is an apocalyptic number.

It is an amenable number.

1010440401 is a deficient number, since it is larger than the sum of its proper divisors (336813471).

1010440401 is an equidigital number, since it uses as much as digits as its factorization.

1010440401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336813470.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1010440401 is about 31787.4252024287. The cubic root of 1010440401 is about 1003.4680920995.

Adding to 1010440401 its reverse (1040440101), we get a palindrome (2050880502).

It can be divided in two parts, 10104 and 40401, that added together give a palindrome (50505).

The spelling of 1010440401 in words is "one billion, ten million, four hundred forty thousand, four hundred one".