3781926 has 24 divisors (see below), whose sum is σ = 8250840. Its totient is φ = 1251936.

The previous prime is 3781909. The next prime is 3781951. The reversal of 3781926 is 6291873.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2290 + ... + 3578.

It is an arithmetic number, because the mean of its divisors is an integer number (343785).

Almost surely, 2^3781926 is an apocalyptic number.

3781926 is an abundant number, since it is smaller than the sum of its proper divisors (4468914).

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

3781926 is a wasteful number, since it uses less digits than its factorization.

3781926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460 (or 1457 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 3781926 is about 1944.7174601983. The cubic root of 3781926 is about 155.8012755571.

It can be divided in two parts, 378 and 1926, that added together give a square (2304 = 48²).

The spelling of 3781926 in words is "three million, seven hundred eighty-one thousand, nine hundred twenty-six".