164244738 has 32 divisors (see below), whose sum is σ = 381026304. Its totient is φ = 46225872.

The previous prime is 164244733. The next prime is 164244761. The reversal of 164244738 is 837442461.

It is a junction number, because it is equal to n+sod(n) for n = 164244696 and 164244705.

It is not an unprimeable number, because it can be changed into a prime (164244733) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 26370 + ... + 31997.

It is an arithmetic number, because the mean of its divisors is an integer number (11907072).

Almost surely, 2^164244738 is an apocalyptic number.

164244738 is an abundant number, since it is smaller than the sum of its proper divisors (216781566).

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

164244738 is a wasteful number, since it uses less digits than its factorization.

164244738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58446.

The product of its digits is 129024, while the sum is 39.

The square root of 164244738 is about 12815.8003261599. The cubic root of 164244738 is about 547.6425133064.

The spelling of 164244738 in words is "one hundred sixty-four million, two hundred forty-four thousand, seven hundred thirty-eight".