21414435404 has 6 divisors (see below), whose sum is σ = 37475261964. Its totient is φ = 10707217700.

The previous prime is 21414435401. The next prime is 21414435421. The reversal of 21414435404 is 40453441412.

It is not an unprimeable number, because it can be changed into a prime (21414435401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2676804422 + ... + 2676804429.

It is an arithmetic number, because the mean of its divisors is an integer number (6245876994).

Almost surely, 2^21414435404 is an apocalyptic number.

It is an amenable number.

21414435404 is a deficient number, since it is larger than the sum of its proper divisors (16060826560).

21414435404 is a wasteful number, since it uses less digits than its factorization.

21414435404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353608855 (or 5353608853 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 21414435404 its reverse (40453441412), we get a palindrome (61867876816).

The spelling of 21414435404 in words is "twenty-one billion, four hundred fourteen million, four hundred thirty-five thousand, four hundred four".