12000478 has 16 divisors (see below), whose sum is σ = 20767104. Its totient is φ = 5094360.

The previous prime is 12000473. The next prime is 12000509. The reversal of 12000478 is 87400021.

It is a super-2 number, since 2×12000478² = 288022944456968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2508 + ... + 5503.

It is an arithmetic number, because the mean of its divisors is an integer number (1297944).

Almost surely, 2^12000478 is an apocalyptic number.

12000478 is a deficient number, since it is larger than the sum of its proper divisors (8766626).

12000478 is a wasteful number, since it uses less digits than its factorization.

12000478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 12000478 is about 3464.1706078079. The cubic root of 12000478 is about 228.9458883226.

Adding to 12000478 its reverse (87400021), we get a palindrome (99400499).

The spelling of 12000478 in words is "twelve million, four hundred seventy-eight", and thus it is an aban number.