18750708 has 18 divisors (see below), whose sum is σ = 47397714. Its totient is φ = 6250224.

The previous prime is 18750703. The next prime is 18750713. The reversal of 18750708 is 80705781.

It is an interprime number because it is at equal distance from previous prime (18750703) and next prime (18750713).

It can be written as a sum of positive squares in only one way, i.e., 18558864 + 191844 = 4308^2 + 438^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 520853 = 18750708 / (1 + 8 + 7 + 5 + 0 + 7 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18750703) 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 5 ways as a sum of consecutive naturals, for example, 260391 + ... + 260462.

Almost surely, 2^18750708 is an apocalyptic number.

18750708 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18750708 is an abundant number, since it is smaller than the sum of its proper divisors (28647006).

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

18750708 is a wasteful number, since it uses less digits than its factorization.

18750708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520863 (or 520858 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 18750708 is about 4330.2087709486. The cubic root of 18750708 is about 265.6679860859.

The spelling of 18750708 in words is "eighteen million, seven hundred fifty thousand, seven hundred eight".