3781426 has 16 divisors (see below), whose sum is σ = 6402240. Its totient is φ = 1659280.

The previous prime is 3781423. The next prime is 3781433. The reversal of 3781426 is 6241873.

It is not an unprimeable number, because it can be changed into a prime (3781423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326 + ... + 3601.

It is an arithmetic number, because the mean of its divisors is an integer number (400140).

Almost surely, 2^3781426 is an apocalyptic number.

3781426 is a deficient number, since it is larger than the sum of its proper divisors (2620814).

3781426 is a wasteful number, since it uses less digits than its factorization.

3781426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969.

The product of its digits is 8064, while the sum is 31.

The square root of 3781426 is about 1944.5889025704. The cubic root of 3781426 is about 155.7944092081.

The spelling of 3781426 in words is "three million, seven hundred eighty-one thousand, four hundred twenty-six".