144909464 has 96 divisors (see below), whose sum is σ = 331138080. Its totient is φ = 59222016.

The previous prime is 144909461. The next prime is 144909467. The reversal of 144909464 is 464909441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (144909461) and next prime (144909467).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144909461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1406837 + ... + 1406939.

It is an arithmetic number, because the mean of its divisors is an integer number (3449355).

Almost surely, 2^144909464 is an apocalyptic number.

144909464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144909464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165569040).

144909464 is an abundant number, since it is smaller than the sum of its proper divisors (186228616).

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

144909464 is a wasteful number, since it uses less digits than its factorization.

144909464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 144909464 is about 12037.8346890128. The cubic root of 144909464 is about 525.2494222240.

The spelling of 144909464 in words is "one hundred forty-four million, nine hundred nine thousand, four hundred sixty-four".