164056398 has 32 divisors (see below), whose sum is σ = 360916992. Its totient is φ = 49711640.

The previous prime is 164056381. The next prime is 164056411. The reversal of 164056398 is 893650461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2286 + ... + 18257.

It is an arithmetic number, because the mean of its divisors is an integer number (11278656).

Almost surely, 2^164056398 is an apocalyptic number.

164056398 is an abundant number, since it is smaller than the sum of its proper divisors (196860594).

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

164056398 is a wasteful number, since it uses less digits than its factorization.

164056398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20581 (or 20559 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 164056398 is about 12808.4502575448. The cubic root of 164056398 is about 547.4331053985.

The spelling of 164056398 in words is "one hundred sixty-four million, fifty-six thousand, three hundred ninety-eight".