5636438 has 4 divisors (see below), whose sum is σ = 8454660. Its totient is φ = 2818218.

The previous prime is 5636437. The next prime is 5636453. The reversal of 5636438 is 8346365.

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

It is a junction number, because it is equal to n+sod(n) for n = 5636398 and 5636407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5636437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1409108 + ... + 1409111.

It is an arithmetic number, because the mean of its divisors is an integer number (2113665).

Almost surely, 2^5636438 is an apocalyptic number.

5636438 is a deficient number, since it is larger than the sum of its proper divisors (2818222).

5636438 is a wasteful number, since it uses less digits than its factorization.

5636438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818221.

The product of its digits is 51840, while the sum is 35.

The square root of 5636438 is about 2374.1183626770. The cubic root of 5636438 is about 177.9651280422.

Subtracting from 5636438 its sum of digits (35), we obtain a triangular number (5636403 = T₃₃₅₇).

The spelling of 5636438 in words is "five million, six hundred thirty-six thousand, four hundred thirty-eight".