3491388 has 36 divisors (see below), whose sum is σ = 8882328. Its totient is φ = 1156320.

The previous prime is 3491363. The next prime is 3491401. The reversal of 3491388 is 8831943.

3491388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10383 + ... + 10713.

Almost surely, 2^3491388 is an apocalyptic number.

It is an amenable number.

3491388 is an abundant number, since it is smaller than the sum of its proper divisors (5390940).

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

3491388 is a wasteful number, since it uses less digits than its factorization.

3491388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 629 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 3491388 is about 1868.5256219811. The cubic root of 3491388 is about 151.7048172486.

The spelling of 3491388 in words is "three million, four hundred ninety-one thousand, three hundred eighty-eight".