12019478 has 16 divisors (see below), whose sum is σ = 19274976. Its totient is φ = 5607360.

The previous prime is 12019463. The next prime is 12019481. The reversal of 12019478 is 87491021.

It is a congruent number.

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, 1301 + ... + 5072.

It is an arithmetic number, because the mean of its divisors is an integer number (1204686).

Almost surely, 2^12019478 is an apocalyptic number.

12019478 is a deficient number, since it is larger than the sum of its proper divisors (7255498).

12019478 is a wasteful number, since it uses less digits than its factorization.

12019478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6439.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 12019478 is about 3466.9118823529. The cubic root of 12019478 is about 229.0666523501.

The spelling of 12019478 in words is "twelve million, nineteen thousand, four hundred seventy-eight".