164297438 has 8 divisors (see below), whose sum is σ = 246949560. Its totient is φ = 81980920.

The previous prime is 164297437. The next prime is 164297447. The reversal of 164297438 is 834792461.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164297437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82673 + ... + 84636.

It is an arithmetic number, because the mean of its divisors is an integer number (30868695).

Almost surely, 2^164297438 is an apocalyptic number.

164297438 is a deficient number, since it is larger than the sum of its proper divisors (82652122).

164297438 is a wasteful number, since it uses less digits than its factorization.

164297438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167802.

The product of its digits is 290304, while the sum is 44.

The square root of 164297438 is about 12817.8562170123. The cubic root of 164297438 is about 547.7010797168.

The spelling of 164297438 in words is "one hundred sixty-four million, two hundred ninety-seven thousand, four hundred thirty-eight".