3778406 has 8 divisors (see below), whose sum is σ = 5731560. Its totient is φ = 1867888.

The previous prime is 3778399. The next prime is 3778421. The reversal of 3778406 is 6048773.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10436 + ... + 10791.

It is an arithmetic number, because the mean of its divisors is an integer number (716445).

Almost surely, 2^3778406 is an apocalyptic number.

3778406 is a deficient number, since it is larger than the sum of its proper divisors (1953154).

3778406 is a wasteful number, since it uses less digits than its factorization.

3778406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21318.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 3778406 is about 1943.8122337304. The cubic root of 3778406 is about 155.7529235865.

The spelling of 3778406 in words is "three million, seven hundred seventy-eight thousand, four hundred six".