1139808354 has 16 divisors (see below), whose sum is σ = 2322628992. Its totient is φ = 372767408.

The previous prime is 1139808343. The next prime is 1139808359. The reversal of 1139808354 is 4538089311.

It is not an unprimeable number, because it can be changed into a prime (1139808359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1791834 + ... + 1792469.

It is an arithmetic number, because the mean of its divisors is an integer number (145164312).

Almost surely, 2^1139808354 is an apocalyptic number.

1139808354 is an abundant number, since it is smaller than the sum of its proper divisors (1182820638).

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

1139808354 is a wasteful number, since it uses less digits than its factorization.

1139808354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584361.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 1139808354 is about 33761.0478806568. The cubic root of 1139808354 is about 1044.5853849949.

The spelling of 1139808354 in words is "one billion, one hundred thirty-nine million, eight hundred eight thousand, three hundred fifty-four".