18970212 has 12 divisors (see below), whose sum is σ = 44263856. Its totient is φ = 6323400.

The previous prime is 18970201. The next prime is 18970223. The reversal of 18970212 is 21207981.

It is an interprime number because it is at equal distance from previous prime (18970201) and next prime (18970223).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 18970212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790414 + ... + 790437.

Almost surely, 2^18970212 is an apocalyptic number.

18970212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18970212 is an abundant number, since it is smaller than the sum of its proper divisors (25293644).

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

18970212 is a wasteful number, since it uses less digits than its factorization.

18970212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580858 (or 1580856 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 18970212 is about 4355.4806852975. The cubic root of 18970212 is about 266.7006421988.

The spelling of 18970212 in words is "eighteen million, nine hundred seventy thousand, two hundred twelve".