13642104 has 32 divisors (see below), whose sum is σ = 38977920. Its totient is φ = 3897696.

The previous prime is 13642103. The next prime is 13642163. The reversal of 13642104 is 40124631.

It is a super-2 number, since 2×13642104² = 372214003093632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13642103) 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, 40434 + ... + 40769.

It is an arithmetic number, because the mean of its divisors is an integer number (1218060).

Almost surely, 2^13642104 is an apocalyptic number.

13642104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13642104 is an abundant number, since it is smaller than the sum of its proper divisors (25335816).

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

13642104 is a wasteful number, since it uses less digits than its factorization.

13642104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81219 (or 81215 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 13642104 is about 3693.5218965102. The cubic root of 13642104 is about 238.9427101936.

Adding to 13642104 its reverse (40124631), we get a palindrome (53766735).

The spelling of 13642104 in words is "thirteen million, six hundred forty-two thousand, one hundred four".