1244100401 has 12 divisors (see below), whose sum is σ = 1292866560. Its totient is φ = 1195927080.

The previous prime is 1244100367. The next prime is 1244100461. The reversal of 1244100401 is 1040014421.

It is not a de Polignac number, because 1244100401 - 2³⁰ = 170358577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1244100401.

It is not an unprimeable number, because it can be changed into a prime (1244100461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 863840 + ... + 865278.

It is an arithmetic number, because the mean of its divisors is an integer number (107738880).

Almost surely, 2^1244100401 is an apocalyptic number.

It is an amenable number.

1244100401 is a deficient number, since it is larger than the sum of its proper divisors (48766159).

1244100401 is an equidigital number, since it uses as much as digits as its factorization.

1244100401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1244100401 is about 35271.8074529786. The cubic root of 1244100401 is about 1075.5199650799.

Adding to 1244100401 its reverse (1040014421), we get a palindrome (2284114822).

The spelling of 1244100401 in words is "one billion, two hundred forty-four million, one hundred thousand, four hundred one".