1144663401 has 32 divisors (see below), whose sum is σ = 1768670208. Its totient is φ = 644990400.

The previous prime is 1144663381. The next prime is 1144663439. The reversal of 1144663401 is 1043664411.

It is not a de Polignac number, because 1144663401 - 2⁶ = 1144663337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144662401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 599290 + ... + 601196.

It is an arithmetic number, because the mean of its divisors is an integer number (55270944).

Almost surely, 2^1144663401 is an apocalyptic number.

It is an amenable number.

1144663401 is a deficient number, since it is larger than the sum of its proper divisors (624006807).

1144663401 is a wasteful number, since it uses less digits than its factorization.

1144663401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1144663401 is about 33832.8745601080. The cubic root of 1144663401 is about 1046.0664314543.

It can be divided in two parts, 11446 and 63401, that added together give a palindrome (74847).

The spelling of 1144663401 in words is "one billion, one hundred forty-four million, six hundred sixty-three thousand, four hundred one".