13120434 has 16 divisors (see below), whose sum is σ = 29156640. Its totient is φ = 4373460.

The previous prime is 13120427. The next prime is 13120483. The reversal of 13120434 is 43402131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121432 + ... + 121539.

It is an arithmetic number, because the mean of its divisors is an integer number (1822290).

Almost surely, 2^13120434 is an apocalyptic number.

13120434 is an abundant number, since it is smaller than the sum of its proper divisors (16036206).

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

13120434 is a wasteful number, since it uses less digits than its factorization.

13120434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242982 (or 242976 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13120434 is about 3622.2139638624. The cubic root of 13120434 is about 235.8573422042.

Adding to 13120434 its reverse (43402131), we get a palindrome (56522565).

The spelling of 13120434 in words is "thirteen million, one hundred twenty thousand, four hundred thirty-four".