1144620204 has 144 divisors (see below), whose sum is σ = 3373318368. Its totient is φ = 299400192.

The previous prime is 1144620203. The next prime is 1144620233. The reversal of 1144620204 is 4020264411.

It is a happy number.

It is a super-2 number, since 2×1144620204² = 2620310822810003232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1144620203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1046682 + ... + 1047774.

It is an arithmetic number, because the mean of its divisors is an integer number (23425822).

Almost surely, 2^1144620204 is an apocalyptic number.

1144620204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144620204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686659184).

1144620204 is an abundant number, since it is smaller than the sum of its proper divisors (2228698164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144620204 is a wasteful number, since it uses less digits than its factorization.

1144620204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1144620204 is about 33832.2361661183. The cubic root of 1144620204 is about 1046.0532725641.

Adding to 1144620204 its reverse (4020264411), we get a palindrome (5164884615).

The spelling of 1144620204 in words is "one billion, one hundred forty-four million, six hundred twenty thousand, two hundred four".