1138909962 has 16 divisors (see below), whose sum is σ = 2278954080. Its totient is φ = 379447632.

The previous prime is 1138909943. The next prime is 1138909963. The reversal of 1138909962 is 2699098311.

It is not an unprimeable number, because it can be changed into a prime (1138909963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33912 + ... + 58547.

It is an arithmetic number, because the mean of its divisors is an integer number (142434630).

Almost surely, 2^1138909962 is an apocalyptic number.

1138909962 is an abundant number, since it is smaller than the sum of its proper divisors (1140044118).

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

1138909962 is a wasteful number, since it uses less digits than its factorization.

1138909962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94517.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 1138909962 is about 33747.7401021165. The cubic root of 1138909962 is about 1044.3108669680.

The spelling of 1138909962 in words is "one billion, one hundred thirty-eight million, nine hundred nine thousand, nine hundred sixty-two".