13402442 has 4 divisors (see below), whose sum is σ = 20103666. Its totient is φ = 6701220.

The previous prime is 13402427. The next prime is 13402453. The reversal of 13402442 is 24420431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13388281 + 14161 = 3659^2 + 119^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3350609 + ... + 3350612.

Almost surely, 2^13402442 is an apocalyptic number.

13402442 is a deficient number, since it is larger than the sum of its proper divisors (6701224).

13402442 is an equidigital number, since it uses as much as digits as its factorization.

13402442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6701223.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 13402442 is about 3660.9345801311. The cubic root of 13402442 is about 237.5352014305.

Adding to 13402442 its reverse (24420431), we get a palindrome (37822873).

The spelling of 13402442 in words is "thirteen million, four hundred two thousand, four hundred forty-two".