164703840 has 96 divisors (see below), whose sum is σ = 592945920. Its totient is φ = 37645824.

The previous prime is 164703821. The next prime is 164703859. The reversal of 164703840 is 48307461.

164703840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (164703821) and next prime (164703859).

It is a tau number, because it is divible by the number of its divisors (96).

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, 21150 + ... + 27869.

It is an arithmetic number, because the mean of its divisors is an integer number (6176520).

Almost surely, 2^164703840 is an apocalyptic number.

164703840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164703840 is an abundant number, since it is smaller than the sum of its proper divisors (428242080).

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

164703840 is a wasteful number, since it uses less digits than its factorization.

164703840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49044 (or 49036 counting only the distinct ones).

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

The square root of 164703840 is about 12833.6993887187. The cubic root of 164703840 is about 548.1523010714.

The spelling of 164703840 in words is "one hundred sixty-four million, seven hundred three thousand, eight hundred forty".