3490381 has 4 divisors (see below), whose sum is σ = 3549600. Its totient is φ = 3431164.

The previous prime is 3490379. The next prime is 3490387. The reversal of 3490381 is 1830943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3490381 - 2¹ = 3490379 is a prime.

It is a super-2 number, since 2×3490381² = 24365519050322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3490387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29521 + ... + 29638.

It is an arithmetic number, because the mean of its divisors is an integer number (887400).

Almost surely, 2^3490381 is an apocalyptic number.

It is an amenable number.

3490381 is a deficient number, since it is larger than the sum of its proper divisors (59219).

3490381 is an equidigital number, since it uses as much as digits as its factorization.

3490381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59218.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3490381 is about 1868.2561387561. The cubic root of 3490381 is about 151.6902307441.

The spelling of 3490381 in words is "three million, four hundred ninety thousand, three hundred eighty-one".