13858140 has 24 divisors (see below), whose sum is σ = 38802960. Its totient is φ = 3695488.

The previous prime is 13858133. The next prime is 13858157. The reversal of 13858140 is 4185831.

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 = 13858098 and 13858107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115425 + ... + 115544.

It is an arithmetic number, because the mean of its divisors is an integer number (1616790).

Almost surely, 2^13858140 is an apocalyptic number.

13858140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13858140 is an abundant number, since it is smaller than the sum of its proper divisors (24944820).

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

13858140 is a wasteful number, since it uses less digits than its factorization.

13858140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230981 (or 230979 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 13858140 is about 3722.6522802969. The cubic root of 13858140 is about 240.1974070269.

The spelling of 13858140 in words is "thirteen million, eight hundred fifty-eight thousand, one hundred forty".