20435416 has 16 divisors (see below), whose sum is σ = 38472840. Its totient is φ = 10176000.

The previous prime is 20435413. The next prime is 20435423. The reversal of 20435416 is 61453402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20435413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3081 + ... + 7096.

Almost surely, 2^20435416 is an apocalyptic number.

It is an amenable number.

20435416 is a deficient number, since it is larger than the sum of its proper divisors (18037424).

20435416 is a wasteful number, since it uses less digits than its factorization.

20435416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10434 (or 10430 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20435416 is about 4520.5548332036. The cubic root of 20435416 is about 273.3974718941.

Adding to 20435416 its reverse (61453402), we get a palindrome (81888818).

The spelling of 20435416 in words is "twenty million, four hundred thirty-five thousand, four hundred sixteen".