141405440 has 144 divisors (see below), whose sum is σ = 377044416. Its totient is φ = 50800640.

The previous prime is 141405427. The next prime is 141405491. The reversal of 141405440 is 44504141.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1703639 + ... + 1703721.

It is an arithmetic number, because the mean of its divisors is an integer number (2618364).

Almost surely, 2^141405440 is an apocalyptic number.

141405440 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 141405440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188522208).

141405440 is an abundant number, since it is smaller than the sum of its proper divisors (235638976).

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

141405440 is an frugal number, since it uses more digits than its factorization.

141405440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 141405440 is about 11891.4019358526. The cubic root of 141405440 is about 520.9811849189.

Adding to 141405440 its reverse (44504141), we get a palindrome (185909581).

The spelling of 141405440 in words is "one hundred forty-one million, four hundred five thousand, four hundred forty".