13950840 has 32 divisors (see below), whose sum is σ = 41852880. Its totient is φ = 3720192.

The previous prime is 13950821. The next prime is 13950841. The reversal of 13950840 is 4805931.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13950798 and 13950807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13950841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58009 + ... + 58248.

Almost surely, 2^13950840 is an apocalyptic number.

13950840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13950840 is an abundant number, since it is smaller than the sum of its proper divisors (27902040).

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

13950840 is a wasteful number, since it uses less digits than its factorization.

13950840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116271 (or 116267 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 13950840 is about 3735.0823284099. The cubic root of 13950840 is about 240.7317941653.

The spelling of 13950840 in words is "thirteen million, nine hundred fifty thousand, eight hundred forty".