164890294 has 8 divisors (see below), whose sum is σ = 253087560. Its totient is φ = 80527776.

The previous prime is 164890273. The next prime is 164890351. The reversal of 164890294 is 492098461.

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

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 164890294.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958579 + ... + 958750.

It is an arithmetic number, because the mean of its divisors is an integer number (31635945).

Almost surely, 2^164890294 is an apocalyptic number.

164890294 is a deficient number, since it is larger than the sum of its proper divisors (88197266).

164890294 is a wasteful number, since it uses less digits than its factorization.

164890294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917374.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 164890294 is about 12840.9615683562. The cubic root of 164890294 is about 548.3590694666.

The spelling of 164890294 in words is "one hundred sixty-four million, eight hundred ninety thousand, two hundred ninety-four".