13902220 has 12 divisors (see below), whose sum is σ = 29194704. Its totient is φ = 5560880.

The previous prime is 13902211. The next prime is 13902221. The reversal of 13902220 is 2220931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13902221) 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, 347536 + ... + 347575.

It is an arithmetic number, because the mean of its divisors is an integer number (2432892).

Almost surely, 2^13902220 is an apocalyptic number.

13902220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13902220 is an abundant number, since it is smaller than the sum of its proper divisors (15292484).

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

13902220 is a wasteful number, since it uses less digits than its factorization.

13902220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695120 (or 695118 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 13902220 is about 3728.5680897631. The cubic root of 13902220 is about 240.4518109486.

The spelling of 13902220 in words is "thirteen million, nine hundred two thousand, two hundred twenty".