144266240 has 88 divisors (see below), whose sum is σ = 364529760. Its totient is φ = 54632448.

The previous prime is 144266237. The next prime is 144266261. The reversal of 144266240 is 42662441.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96539 + ... + 98021.

Almost surely, 2^144266240 is an apocalyptic number.

144266240 is a gapful number since it is divisible by the number (10) 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 144266240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182264880).

144266240 is an abundant number, since it is smaller than the sum of its proper divisors (220263520).

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

144266240 is a wasteful number, since it uses less digits than its factorization.

144266240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 144266240 is about 12011.0882104828. The cubic root of 144266240 is about 524.4711106064.

The spelling of 144266240 in words is "one hundred forty-four million, two hundred sixty-six thousand, two hundred forty".