18352061 has 16 divisors (see below), whose sum is σ = 23917824. Its totient is φ = 13665024.

The previous prime is 18352057. The next prime is 18352063. The reversal of 18352061 is 16025381.

It is a cyclic number.

It is not a de Polignac number, because 18352061 - 2² = 18352057 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18352061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18352063) 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, 4385 + ... + 7478.

It is an arithmetic number, because the mean of its divisors is an integer number (1494864).

Almost surely, 2^18352061 is an apocalyptic number.

It is an amenable number.

18352061 is a deficient number, since it is larger than the sum of its proper divisors (5565763).

18352061 is a wasteful number, since it uses less digits than its factorization.

18352061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11900.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 18352061 is about 4283.9305549927. The cubic root of 18352061 is about 263.7717504131.

The spelling of 18352061 in words is "eighteen million, three hundred fifty-two thousand, sixty-one".