4012478 has 4 divisors (see below), whose sum is σ = 6018720. Its totient is φ = 2006238.

The previous prime is 4012457. The next prime is 4012483. The reversal of 4012478 is 8742104.

It is a semiprime because it is the product of two primes.

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, 1003118 + ... + 1003121.

It is an arithmetic number, because the mean of its divisors is an integer number (1504680).

Almost surely, 2^4012478 is an apocalyptic number.

4012478 is a deficient number, since it is larger than the sum of its proper divisors (2006242).

4012478 is a wasteful number, since it uses less digits than its factorization.

4012478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006241.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 4012478 is about 2003.1170709671. The cubic root of 4012478 is about 158.9049971081.

The spelling of 4012478 in words is "four million, twelve thousand, four hundred seventy-eight".