13858542 has 12 divisors (see below), whose sum is σ = 30026880. Its totient is φ = 4619508.

The previous prime is 13858531. The next prime is 13858567. The reversal of 13858542 is 24585831.

It is a happy number.

13858542 is a `hidden beast` number, since 1 + 38 + 585 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 13858497 and 13858506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 384942 + ... + 384977.

It is an arithmetic number, because the mean of its divisors is an integer number (2502240).

Almost surely, 2^13858542 is an apocalyptic number.

13858542 is an abundant number, since it is smaller than the sum of its proper divisors (16168338).

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

13858542 is a wasteful number, since it uses less digits than its factorization.

13858542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769927 (or 769924 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 13858542 is about 3722.7062736670. The cubic root of 13858542 is about 240.1997295710.

It can be divided in two parts, 13858 and 542, that added together give a square (14400 = 120²).

The spelling of 13858542 in words is "thirteen million, eight hundred fifty-eight thousand, five hundred forty-two".