164438070 has 32 divisors (see below), whose sum is σ = 395664480. Its totient is φ = 43737600.

The previous prime is 164438069. The next prime is 164438077. The reversal of 164438070 is 70834461.

It is a super-3 number, since 3×164438070³ (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 (164438077) 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, 5196 + ... + 18864.

It is an arithmetic number, because the mean of its divisors is an integer number (12364515).

Almost surely, 2^164438070 is an apocalyptic number.

164438070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164438070 is an abundant number, since it is smaller than the sum of its proper divisors (231226410).

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

164438070 is a wasteful number, since it uses less digits than its factorization.

164438070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14080.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 164438070 is about 12823.3408283489. The cubic root of 164438070 is about 547.8573051842.

The spelling of 164438070 in words is "one hundred sixty-four million, four hundred thirty-eight thousand, seventy".