1138732012 has 24 divisors (see below), whose sum is σ = 2301823440. Its totient is φ = 487157760.

The previous prime is 1138731983. The next prime is 1138732033. The reversal of 1138732012 is 2102378311.

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, 760437 + ... + 761932.

It is an arithmetic number, because the mean of its divisors is an integer number (95909310).

Almost surely, 2^1138732012 is an apocalyptic number.

It is an amenable number.

1138732012 is an abundant number, since it is smaller than the sum of its proper divisors (1163091428).

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

1138732012 is a wasteful number, since it uses less digits than its factorization.

1138732012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522401 (or 1522399 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1138732012 is about 33745.1035262896. The cubic root of 1138732012 is about 1044.2564743749.

The spelling of 1138732012 in words is "one billion, one hundred thirty-eight million, seven hundred thirty-two thousand, twelve".