3261390 has 32 divisors (see below), whose sum is σ = 8539776. Its totient is φ = 790560.

The previous prime is 3261373. The next prime is 3261397. The reversal of 3261390 is 931623.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 3261390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4612 + ... + 5271.

It is an arithmetic number, because the mean of its divisors is an integer number (266868).

Almost surely, 2^3261390 is an apocalyptic number.

3261390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3261390 is an abundant number, since it is smaller than the sum of its proper divisors (5278386).

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

3261390 is a wasteful number, since it uses less digits than its factorization.

3261390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9904.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 3261390 is about 1805.9318924035. The cubic root of 3261390 is about 148.2976418216.

The spelling of 3261390 in words is "three million, two hundred sixty-one thousand, three hundred ninety".