18340763 has 16 divisors (see below), whose sum is σ = 21648384. Its totient is φ = 15213120.

The previous prime is 18340741. The next prime is 18340769. The reversal of 18340763 is 36704381.

It is a cyclic number.

It is not a de Polignac number, because 18340763 - 2¹² = 18336667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18340769) 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, 34943 + ... + 35463.

It is an arithmetic number, because the mean of its divisors is an integer number (1353024).

Almost surely, 2^18340763 is an apocalyptic number.

18340763 is a deficient number, since it is larger than the sum of its proper divisors (3307621).

18340763 is a wasteful number, since it uses less digits than its factorization.

18340763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 18340763 is about 4282.6117031550. The cubic root of 18340763 is about 263.7176110808.

The spelling of 18340763 in words is "eighteen million, three hundred forty thousand, seven hundred sixty-three".