164243402 has 8 divisors (see below), whose sum is σ = 252094656. Its totient is φ = 80211852.

The previous prime is 164243399. The next prime is 164243411. The reversal of 164243402 is 204342461.

164243402 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954818 + ... + 954989.

It is an arithmetic number, because the mean of its divisors is an integer number (31511832).

Almost surely, 2^164243402 is an apocalyptic number.

164243402 is a deficient number, since it is larger than the sum of its proper divisors (87851254).

164243402 is a wasteful number, since it uses less digits than its factorization.

164243402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909852.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 164243402 is about 12815.7482028947. The cubic root of 164243402 is about 547.6410284239.

Adding to 164243402 its reverse (204342461), we get a palindrome (368585863).

The spelling of 164243402 in words is "one hundred sixty-four million, two hundred forty-three thousand, four hundred two".