2103478 has 16 divisors (see below), whose sum is σ = 3598560. Its totient is φ = 913536.

The previous prime is 2103473. The next prime is 2103503. The reversal of 2103478 is 8743012.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103473) 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, 1938 + ... + 2821.

It is an arithmetic number, because the mean of its divisors is an integer number (224910).

2^2103478 is an apocalyptic number.

2103478 is a deficient number, since it is larger than the sum of its proper divisors (1495082).

2103478 is a wasteful number, since it uses less digits than its factorization.

2103478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2103478 is about 1450.3372021706. The cubic root of 2103478 is about 128.1285736065.

It can be divided in two parts, 21034 and 78, that added together give a palindrome (21112).

The spelling of 2103478 in words is "two million, one hundred three thousand, four hundred seventy-eight".