13409142 has 16 divisors (see below), whose sum is σ = 27258672. Its totient is φ = 4396320.

The previous prime is 13409119. The next prime is 13409153. The reversal of 13409142 is 24190431.

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, 17953 + ... + 18684.

It is an arithmetic number, because the mean of its divisors is an integer number (1703667).

Almost surely, 2^13409142 is an apocalyptic number.

13409142 is an abundant number, since it is smaller than the sum of its proper divisors (13849530).

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

13409142 is a wasteful number, since it uses less digits than its factorization.

13409142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36703.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 13409142 is about 3661.8495326815. The cubic root of 13409142 is about 237.5747768234.

Adding to 13409142 its reverse (24190431), we get a palindrome (37599573).

The spelling of 13409142 in words is "thirteen million, four hundred nine thousand, one hundred forty-two".