1144838835 has 48 divisors (see below), whose sum is σ = 2341048320. Its totient is φ = 506468160.

The previous prime is 1144838809. The next prime is 1144838873. The reversal of 1144838835 is 5388384411.

It is not a de Polignac number, because 1144838835 - 2⁷ = 1144838707 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48855 + ... + 68384.

It is an arithmetic number, because the mean of its divisors is an integer number (48771840).

Almost surely, 2^1144838835 is an apocalyptic number.

1144838835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1144838835 is an abundant number, since it is smaller than the sum of its proper divisors (1196209485).

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

1144838835 is a wasteful number, since it uses less digits than its factorization.

1144838835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117288 (or 117285 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 1144838835 is about 33835.4671166219. The cubic root of 1144838835 is about 1046.1198696510.

The spelling of 1144838835 in words is "one billion, one hundred forty-four million, eight hundred thirty-eight thousand, eight hundred thirty-five".