13311402 has 32 divisors (see below), whose sum is σ = 28879872. Its totient is φ = 4065984.

The previous prime is 13311383. The next prime is 13311409. The reversal of 13311402 is 20411331.

It is not an unprimeable number, because it can be changed into a prime (13311409) 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 15 ways as a sum of consecutive naturals, for example, 11703 + ... + 12789.

It is an arithmetic number, because the mean of its divisors is an integer number (902496).

Almost surely, 2^13311402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13311402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14439936).

13311402 is an abundant number, since it is smaller than the sum of its proper divisors (15568470).

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

13311402 is a wasteful number, since it uses less digits than its factorization.

13311402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13311402 is about 3648.4794092882. The cubic root of 13311402 is about 236.9961365960.

Adding to 13311402 its reverse (20411331), we get a palindrome (33722733).

The spelling of 13311402 in words is "thirteen million, three hundred eleven thousand, four hundred two".