3778426 has 4 divisors (see below), whose sum is σ = 5667642. Its totient is φ = 1889212.

The previous prime is 3778421. The next prime is 3778427. The reversal of 3778426 is 6248773.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3606201 + 172225 = 1899^2 + 415^2 .

It is not an unprimeable number, because it can be changed into a prime (3778421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 944605 + ... + 944608.

Almost surely, 2^3778426 is an apocalyptic number.

3778426 is a deficient number, since it is larger than the sum of its proper divisors (1889216).

3778426 is a wasteful number, since it uses less digits than its factorization.

3778426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889215.

The product of its digits is 56448, while the sum is 37.

The square root of 3778426 is about 1943.8173782534. The cubic root of 3778426 is about 155.7531983984.

The spelling of 3778426 in words is "three million, seven hundred seventy-eight thousand, four hundred twenty-six".