20361418 has 32 divisors (see below), whose sum is σ = 38459520. Its totient is φ = 7853760.

The previous prime is 20361413. The next prime is 20361421. The reversal of 20361418 is 81416302.

It is a junction number, because it is equal to n+sod(n) for n = 20361392 and 20361401.

It is not an unprimeable number, because it can be changed into a prime (20361413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16180 + ... + 17392.

It is an arithmetic number, because the mean of its divisors is an integer number (1201860).

Almost surely, 2^20361418 is an apocalyptic number.

20361418 is a deficient number, since it is larger than the sum of its proper divisors (18098102).

20361418 is a wasteful number, since it uses less digits than its factorization.

20361418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20361418 is about 4512.3627956981. The cubic root of 20361418 is about 273.0670759698.

The spelling of 20361418 in words is "twenty million, three hundred sixty-one thousand, four hundred eighteen".