269172642 has 16 divisors (see below), whose sum is σ = 538509312. Its totient is φ = 89696880.

The previous prime is 269172641. The next prime is 269172649. The reversal of 269172642 is 246271962.

It is a super-2 number, since 2×269172642² = 144907822402520328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 269172642.

It is not an unprimeable number, because it can be changed into a prime (269172641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28767 + ... + 36957.

It is an arithmetic number, because the mean of its divisors is an integer number (33656832).

Almost surely, 2^269172642 is an apocalyptic number.

269172642 is an abundant number, since it is smaller than the sum of its proper divisors (269336670).

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

269172642 is a wasteful number, since it uses less digits than its factorization.

269172642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13673.

The product of its digits is 72576, while the sum is 39.

The square root of 269172642 is about 16406.4817069352. The cubic root of 269172642 is about 645.6695505025.

The spelling of 269172642 in words is "two hundred sixty-nine million, one hundred seventy-two thousand, six hundred forty-two".