20410916 has 12 divisors (see below), whose sum is σ = 35823900. Its totient is φ = 10175520.

The previous prime is 20410903. The next prime is 20410919. The reversal of 20410916 is 61901402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5044516 + 15366400 = 2246^2 + 3920^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20410891 and 20410900.

It is not an unprimeable number, because it can be changed into a prime (20410919) 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, 5915 + ... + 8706.

It is an arithmetic number, because the mean of its divisors is an integer number (2985325).

Almost surely, 2^20410916 is an apocalyptic number.

It is an amenable number.

20410916 is a deficient number, since it is larger than the sum of its proper divisors (15412984).

20410916 is a wasteful number, since it uses less digits than its factorization.

20410916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14974 (or 14972 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 20410916 is about 4517.8441761530. The cubic root of 20410916 is about 273.2881695489.

The spelling of 20410916 in words is "twenty million, four hundred ten thousand, nine hundred sixteen".