13140390 has 32 divisors (see below), whose sum is σ = 31726080. Its totient is φ = 3483104.

The previous prime is 13140389. The next prime is 13140409. The reversal of 13140390 is 9304131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4147 + ... + 6593.

It is an arithmetic number, because the mean of its divisors is an integer number (991440).

Almost surely, 2^13140390 is an apocalyptic number.

13140390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13140390 is an abundant number, since it is smaller than the sum of its proper divisors (18585690).

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

13140390 is a wasteful number, since it uses less digits than its factorization.

13140390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13140390 is about 3624.9675860620. The cubic root of 13140390 is about 235.9768602228.

It can be divided in two parts, 13140 and 390, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 13140390 in words is "thirteen million, one hundred forty thousand, three hundred ninety".