1139344340 has 24 divisors (see below), whose sum is σ = 2448267360. Its totient is φ = 445138848.

The previous prime is 1139344331. The next prime is 1139344379. The reversal of 1139344340 is 434439311.

It is a junction number, because it is equal to n+sod(n) for n = 1139344297 and 1139344306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661550 + ... + 663269.

It is an arithmetic number, because the mean of its divisors is an integer number (102011140).

Almost surely, 2^1139344340 is an apocalyptic number.

1139344340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1139344340 is an abundant number, since it is smaller than the sum of its proper divisors (1308923020).

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

1139344340 is a wasteful number, since it uses less digits than its factorization.

1139344340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324871 (or 1324869 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1139344340 is about 33754.1751491575. The cubic root of 1139344340 is about 1044.4436161236.

The spelling of 1139344340 in words is "one billion, one hundred thirty-nine million, three hundred forty-four thousand, three hundred forty".