18970422 has 16 divisors (see below), whose sum is σ = 38748672. Its totient is φ = 6188840.

The previous prime is 18970411. The next prime is 18970433. The reversal of 18970422 is 22407981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18970411) and next prime (18970433).

It is a congruent number.

It is an unprimeable number.

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, 33354 + ... + 33917.

It is an arithmetic number, because the mean of its divisors is an integer number (2421792).

Almost surely, 2^18970422 is an apocalyptic number.

18970422 is an abundant number, since it is smaller than the sum of its proper divisors (19778250).

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

18970422 is a wasteful number, since it uses less digits than its factorization.

18970422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67323.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 18970422 is about 4355.5047927881. The cubic root of 18970422 is about 266.7016263194.

The spelling of 18970422 in words is "eighteen million, nine hundred seventy thousand, four hundred twenty-two".