109400012 has 12 divisors (see below), whose sum is σ = 194307960. Its totient is φ = 53883456.

The previous prime is 109399999. The next prime is 109400021. The reversal of 109400012 is 210004901.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203837 + ... + 204372.

It is an arithmetic number, because the mean of its divisors is an integer number (16192330).

Almost surely, 2^109400012 is an apocalyptic number.

It is an amenable number.

109400012 is a deficient number, since it is larger than the sum of its proper divisors (84907948).

109400012 is a wasteful number, since it uses less digits than its factorization.

109400012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408280 (or 408278 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 109400012 is about 10459.4460656385. The cubic root of 109400012 is about 478.2692471887.

Adding to 109400012 its reverse (210004901), we get a palindrome (319404913).

The spelling of 109400012 in words is "one hundred nine million, four hundred thousand, twelve".