164039790 has 16 divisors (see below), whose sum is σ = 393695568. Its totient is φ = 43743936.

The previous prime is 164039773. The next prime is 164039791. The reversal of 164039790 is 97930461.

164039790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164039791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2733967 + ... + 2734026.

It is an arithmetic number, because the mean of its divisors is an integer number (24605973).

Almost surely, 2^164039790 is an apocalyptic number.

164039790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164039790 is an abundant number, since it is smaller than the sum of its proper divisors (229655778).

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

164039790 is a wasteful number, since it uses less digits than its factorization.

164039790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5468003.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 164039790 is about 12807.8019191429. The cubic root of 164039790 is about 547.4146319224.

The spelling of 164039790 in words is "one hundred sixty-four million, thirty-nine thousand, seven hundred ninety".