13929090 has 64 divisors (see below), whose sum is σ = 40227840. Its totient is φ = 3015360.

The previous prime is 13929079. The next prime is 13929101. The reversal of 13929090 is 9092931.

It is an interprime number because it is at equal distance from previous prime (13929079) and next prime (13929101).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2245 + ... + 5735.

It is an arithmetic number, because the mean of its divisors is an integer number (628560).

Almost surely, 2^13929090 is an apocalyptic number.

13929090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13929090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20113920).

13929090 is an abundant number, since it is smaller than the sum of its proper divisors (26298750).

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

13929090 is a wasteful number, since it uses less digits than its factorization.

13929090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 13929090 is about 3732.1696102937. The cubic root of 13929090 is about 240.6066251219.

The spelling of 13929090 in words is "thirteen million, nine hundred twenty-nine thousand, ninety".