141402440 has 64 divisors (see below), whose sum is σ = 328648320. Its totient is φ = 54720000.

The previous prime is 141402433. The next prime is 141402467. The reversal of 141402440 is 44204141.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 247355 + ... + 247925.

It is an arithmetic number, because the mean of its divisors is an integer number (5135130).

Almost surely, 2^141402440 is an apocalyptic number.

141402440 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 141402440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164324160).

141402440 is an abundant number, since it is smaller than the sum of its proper divisors (187245880).

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

141402440 is a wasteful number, since it uses less digits than its factorization.

141402440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 141402440 is about 11891.2757936228. The cubic root of 141402440 is about 520.9775005849.

Adding to 141402440 its reverse (44204141), we get a palindrome (185606581).

The spelling of 141402440 in words is "one hundred forty-one million, four hundred two thousand, four hundred forty".