1144023020 has 48 divisors (see below), whose sum is σ = 2797478208. Its totient is φ = 384833280.

The previous prime is 1144022987. The next prime is 1144023029. The reversal of 1144023020 is 203204411.

1144023020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1144023020.

It is not an unprimeable number, because it can be changed into a prime (1144023029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69671 + ... + 84510.

It is an arithmetic number, because the mean of its divisors is an integer number (58280796).

Almost surely, 2^1144023020 is an apocalyptic number.

1144023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144023020 is an abundant number, since it is smaller than the sum of its proper divisors (1653455188).

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

1144023020 is a wasteful number, since it uses less digits than its factorization.

1144023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154250 (or 154248 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1144023020 is about 33823.4093491475. The cubic root of 1144023020 is about 1045.8713213963.

Adding to 1144023020 its reverse (203204411), we get a palindrome (1347227431).

The spelling of 1144023020 in words is "one billion, one hundred forty-four million, twenty-three thousand, twenty".