18782070 has 64 divisors (see below), whose sum is σ = 48142080. Its totient is φ = 4675968.

The previous prime is 18782047. The next prime is 18782077. The reversal of 18782070 is 7028781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18782077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47112 + ... + 47508.

It is an arithmetic number, because the mean of its divisors is an integer number (752220).

Almost surely, 2^18782070 is an apocalyptic number.

18782070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18782070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24071040).

18782070 is an abundant number, since it is smaller than the sum of its proper divisors (29360010).

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

18782070 is a wasteful number, since it uses less digits than its factorization.

18782070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 18782070 is about 4333.8285614454. The cubic root of 18782070 is about 265.8160202908.

The spelling of 18782070 in words is "eighteen million, seven hundred eighty-two thousand, seventy".