144209226 has 16 divisors (see below), whose sum is σ = 329621184. Its totient is φ = 41202624.

The previous prime is 144209213. The next prime is 144209227. The reversal of 144209226 is 622902441.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144209193 and 144209202.

It is not an unprimeable number, because it can be changed into a prime (144209227) 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, 1716735 + ... + 1716818.

It is an arithmetic number, because the mean of its divisors is an integer number (20601324).

Almost surely, 2^144209226 is an apocalyptic number.

144209226 is an abundant number, since it is smaller than the sum of its proper divisors (185411958).

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

144209226 is a wasteful number, since it uses less digits than its factorization.

144209226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433565.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 144209226 is about 12008.7145856665. The cubic root of 144209226 is about 524.4020111971.

The spelling of 144209226 in words is "one hundred forty-four million, two hundred nine thousand, two hundred twenty-six".