164240738 has 8 divisors (see below), whose sum is σ = 246589788. Its totient is φ = 82044144.

The previous prime is 164240707. The next prime is 164240761. The reversal of 164240738 is 837042461.

164240738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 126945289 + 37295449 = 11267^2 + 6107^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 164240698 and 164240707.

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 3 ways as a sum of consecutive naturals, for example, 35381 + ... + 39752.

Almost surely, 2^164240738 is an apocalyptic number.

164240738 is a deficient number, since it is larger than the sum of its proper divisors (82349050).

164240738 is a wasteful number, since it uses less digits than its factorization.

164240738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76228.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 164240738 is about 12815.6442678470. The cubic root of 164240738 is about 547.6380675265.

The spelling of 164240738 in words is "one hundred sixty-four million, two hundred forty thousand, seven hundred thirty-eight".