3491424 has 72 divisors (see below), whose sum is σ = 10319400. Its totient is φ = 1161216.

The previous prime is 3491419. The next prime is 3491429. The reversal of 3491424 is 4241943.

It is an interprime number because it is at equal distance from previous prime (3491419) and next prime (3491429).

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3491429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7552 + ... + 8000.

It is an arithmetic number, because the mean of its divisors is an integer number (143325).

Almost surely, 2^3491424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3491424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5159700).

3491424 is an abundant number, since it is smaller than the sum of its proper divisors (6827976).

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

3491424 is an equidigital number, since it uses as much as digits as its factorization.

3491424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 454 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 3491424 is about 1868.5352552200. The cubic root of 3491424 is about 151.7053386606.

The spelling of 3491424 in words is "three million, four hundred ninety-one thousand, four hundred twenty-four".