3781434 has 16 divisors (see below), whose sum is σ = 7608672. Its totient is φ = 1252848.

The previous prime is 3781433. The next prime is 3781447. The reversal of 3781434 is 4341873.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3781433) 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 7 ways as a sum of consecutive naturals, for example, 784 + ... + 2859.

It is an arithmetic number, because the mean of its divisors is an integer number (475542).

Almost surely, 2^3781434 is an apocalyptic number.

3781434 is an abundant number, since it is smaller than the sum of its proper divisors (3827238).

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

3781434 is a wasteful number, since it uses less digits than its factorization.

3781434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821.

The product of its digits is 8064, while the sum is 30.

The square root of 3781434 is about 1944.5909595594. The cubic root of 3781434 is about 155.7945190745.

The spelling of 3781434 in words is "three million, seven hundred eighty-one thousand, four hundred thirty-four".