3778245 has 40 divisors (see below), whose sum is σ = 7143840. Its totient is φ = 1905120.

The previous prime is 3778241. The next prime is 3778253. The reversal of 3778245 is 5428773.

It is not a de Polignac number, because 3778245 - 2² = 3778241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778241) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7450 + ... + 7940.

It is an arithmetic number, because the mean of its divisors is an integer number (178596).

Almost surely, 2^3778245 is an apocalyptic number.

It is an amenable number.

3778245 is a deficient number, since it is larger than the sum of its proper divisors (3365595).

3778245 is a wasteful number, since it uses less digits than its factorization.

3778245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 518 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 3778245 is about 1943.7708198242. The cubic root of 3778245 is about 155.7507113152.

The spelling of 3778245 in words is "three million, seven hundred seventy-eight thousand, two hundred forty-five".