18470970 has 128 divisors (see below), whose sum is σ = 58406400. Its totient is φ = 4064256.

The previous prime is 18470957. The next prime is 18470987. The reversal of 18470970 is 7907481.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54642 + ... + 54978.

It is an arithmetic number, because the mean of its divisors is an integer number (456300).

Almost surely, 2^18470970 is an apocalyptic number.

18470970 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 18470970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29203200).

18470970 is an abundant number, since it is smaller than the sum of its proper divisors (39935430).

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

18470970 is a wasteful number, since it uses less digits than its factorization.

18470970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 18470970 is about 4297.7866396553. The cubic root of 18470970 is about 264.3402122125.

The spelling of 18470970 in words is "eighteen million, four hundred seventy thousand, nine hundred seventy".