13773402 has 20 divisors (see below), whose sum is σ = 30862986. Its totient is φ = 4591080.

The previous prime is 13773379. The next prime is 13773427. The reversal of 13773402 is 20437731.

It can be written as a sum of positive squares in only one way, i.e., 12383361 + 1390041 = 3519^2 + 1179^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

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 9 ways as a sum of consecutive naturals, for example, 42349 + ... + 42672.

Almost surely, 2^13773402 is an apocalyptic number.

13773402 is an abundant number, since it is smaller than the sum of its proper divisors (17089584).

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

13773402 is an equidigital number, since it uses as much as digits as its factorization.

13773402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85035 (or 85026 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 13773402 is about 3711.2534270782. The cubic root of 13773402 is about 239.7068295253.

The spelling of 13773402 in words is "thirteen million, seven hundred seventy-three thousand, four hundred two".