20416276 has 12 divisors (see below), whose sum is σ = 35823060. Its totient is φ = 10181120.

The previous prime is 20416247. The next prime is 20416309. The reversal of 20416276 is 67261402.

It can be written as a sum of positive squares in 2 ways, for example, as 3802500 + 16613776 = 1950^2 + 4076^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005 + ... + 8116.

It is an arithmetic number, because the mean of its divisors is an integer number (2985255).

Almost surely, 2^20416276 is an apocalyptic number.

It is an amenable number.

20416276 is a deficient number, since it is larger than the sum of its proper divisors (15406784).

20416276 is a wasteful number, since it uses less digits than its factorization.

20416276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13514 (or 13512 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20416276 is about 4518.4373404973. The cubic root of 20416276 is about 273.3120896967.

Adding to 20416276 its reverse (67261402), we get a palindrome (87677678).

The spelling of 20416276 in words is "twenty million, four hundred sixteen thousand, two hundred seventy-six".