164043240 has 32 divisors (see below), whose sum is σ = 492130080. Its totient is φ = 43744832.

The previous prime is 164043239. The next prime is 164043293. The reversal of 164043240 is 42340461.

164043240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 164043240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683394 + ... + 683633.

It is an arithmetic number, because the mean of its divisors is an integer number (15379065).

Almost surely, 2^164043240 is an apocalyptic number.

164043240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164043240 is an abundant number, since it is smaller than the sum of its proper divisors (328086840).

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

164043240 is a wasteful number, since it uses less digits than its factorization.

164043240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367041 (or 1367037 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 164043240 is about 12807.9366019668. The cubic root of 164043240 is about 547.4184695426.

The spelling of 164043240 in words is "one hundred sixty-four million, forty-three thousand, two hundred forty".