164426814 has 32 divisors (see below), whose sum is σ = 367150080. Its totient is φ = 54545400.

The previous prime is 164426807. The next prime is 164426819. The reversal of 164426814 is 418624461.

It is a happy number.

164426814 is a `hidden beast` number, since 1 + 644 + 2 + 6 + 8 + 1 + 4 = 666.

It is a super-3 number, since 3×164426814³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164426819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4179 + ... + 18609.

It is an arithmetic number, because the mean of its divisors is an integer number (11473440).

Almost surely, 2^164426814 is an apocalyptic number.

164426814 is an abundant number, since it is smaller than the sum of its proper divisors (202723266).

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

164426814 is a wasteful number, since it uses less digits than its factorization.

164426814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14653 (or 14647 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 164426814 is about 12822.9019336498. The cubic root of 164426814 is about 547.8448043836.

The spelling of 164426814 in words is "one hundred sixty-four million, four hundred twenty-six thousand, eight hundred fourteen".