2378406 has 16 divisors (see below), whose sum is σ = 4921200. Its totient is φ = 765408.

The previous prime is 2378399. The next prime is 2378423. The reversal of 2378406 is 6048732.

It is a d-powerful number, because it can be written as 2 + 3⁵ + 7² + 8⁷ + 4⁵ + 0 + 6⁷ .

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, 6661 + ... + 7008.

It is an arithmetic number, because the mean of its divisors is an integer number (307575).

2^2378406 is an apocalyptic number.

2378406 is an abundant number, since it is smaller than the sum of its proper divisors (2542794).

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

2378406 is a wasteful number, since it uses less digits than its factorization.

2378406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13703.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2378406 is about 1542.2081571565. The cubic root of 2378406 is about 133.4838314523.

The spelling of 2378406 in words is "two million, three hundred seventy-eight thousand, four hundred six".