18476740 has 24 divisors (see below), whose sum is σ = 40844160. Its totient is φ = 7001568.

The previous prime is 18476737. The next prime is 18476749. The reversal of 18476740 is 4767481.

It is a self number, because there is not a number n which added to its sum of digits gives 18476740.

It is not an unprimeable number, because it can be changed into a prime (18476749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23932 + ... + 24691.

It is an arithmetic number, because the mean of its divisors is an integer number (1701840).

Almost surely, 2^18476740 is an apocalyptic number.

18476740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18476740 is an abundant number, since it is smaller than the sum of its proper divisors (22367420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18476740 is a wasteful number, since it uses less digits than its factorization.

18476740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48651 (or 48649 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 18476740 is about 4298.4578630016. The cubic root of 18476740 is about 264.3677343952.

The spelling of 18476740 in words is "eighteen million, four hundred seventy-six thousand, seven hundred forty".