144464442 has 16 divisors (see below), whose sum is σ = 291136032. Its totient is φ = 47786960.

The previous prime is 144464431. The next prime is 144464471. The reversal of 144464442 is 244464441.

It is a super-3 number, since 3×144464442³ (a number of 25 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 91113 + ... + 92684.

It is an arithmetic number, because the mean of its divisors is an integer number (18196002).

Almost surely, 2^144464442 is an apocalyptic number.

144464442 is an abundant number, since it is smaller than the sum of its proper divisors (146671590).

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

144464442 is a wasteful number, since it uses less digits than its factorization.

144464442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183933.

The product of its digits is 49152, while the sum is 33.

The square root of 144464442 is about 12019.3361713532. The cubic root of 144464442 is about 524.7111844552.

Subtracting 144464442 from its reverse (244464441), we obtain a palindrome (99999999).

The spelling of 144464442 in words is "one hundred forty-four million, four hundred sixty-four thousand, four hundred forty-two".