16436402 has 4 divisors (see below), whose sum is σ = 24654606. Its totient is φ = 8218200.

The previous prime is 16436401. The next prime is 16436411. The reversal of 16436402 is 20463461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20463461 = 17 ⋅1203733.

It can be written as a sum of positive squares in only one way, i.e., 9928801 + 6507601 = 3151^2 + 2551^2 .

It is not an unprimeable number, because it can be changed into a prime (16436401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4109099 + ... + 4109102.

Almost surely, 2^16436402 is an apocalyptic number.

16436402 is a deficient number, since it is larger than the sum of its proper divisors (8218204).

16436402 is an equidigital number, since it uses as much as digits as its factorization.

16436402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8218203.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 16436402 is about 4054.1832716344. The cubic root of 16436402 is about 254.2546581066.

Adding to 16436402 its reverse (20463461), we get a palindrome (36899863).

The spelling of 16436402 in words is "sixteen million, four hundred thirty-six thousand, four hundred two".