12019604 has 6 divisors (see below), whose sum is σ = 21034314. Its totient is φ = 6009800.

The previous prime is 12019597. The next prime is 12019619. The reversal of 12019604 is 40691021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6250000 + 5769604 = 2500^2 + 2402^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12019604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502447 + ... + 1502454.

It is an arithmetic number, because the mean of its divisors is an integer number (3505719).

Almost surely, 2^12019604 is an apocalyptic number.

It is an amenable number.

12019604 is a deficient number, since it is larger than the sum of its proper divisors (9014710).

12019604 is a wasteful number, since it uses less digits than its factorization.

12019604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004905 (or 3004903 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12019604 is about 3466.9300540969. The cubic root of 12019604 is about 229.0674527814.

The spelling of 12019604 in words is "twelve million, nineteen thousand, six hundred four".