3778290 has 24 divisors (see below), whose sum is σ = 9823788. Its totient is φ = 1007520.

The previous prime is 3778253. The next prime is 3778297. The reversal of 3778290 is 928773.

3778290 = 361² + 362² + ... + 387².

It can be written as a sum of positive squares in 2 ways, for example, as 3229209 + 549081 = 1797^2 + 741^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3778297) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 20901 + ... + 21080.

Almost surely, 2^3778290 is an apocalyptic number.

3778290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3778290 is an abundant number, since it is smaller than the sum of its proper divisors (6045498).

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

3778290 is a wasteful number, since it uses less digits than its factorization.

3778290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41994 (or 41991 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 3778290 is about 1943.7823952284. The cubic root of 3778290 is about 155.7513296583.

The spelling of 3778290 in words is "three million, seven hundred seventy-eight thousand, two hundred ninety".