2003478 has 16 divisors (see below), whose sum is σ = 4064256. Its totient is φ = 658280.

The previous prime is 2003471. The next prime is 2003483. The reversal of 2003478 is 8743002.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003471) 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, 1926 + ... + 2777.

It is an arithmetic number, because the mean of its divisors is an integer number (254016).

2^2003478 is an apocalyptic number.

2003478 is an abundant number, since it is smaller than the sum of its proper divisors (2060778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2003478 is a wasteful number, since it uses less digits than its factorization.

2003478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2003478 is about 1415.4426869358. The cubic root of 2003478 is about 126.0650961188.

The spelling of 2003478 in words is "two million, three thousand, four hundred seventy-eight".