440142135400 has 96 divisors (see below), whose sum is σ = 1152372314880. Its totient is φ = 154888704000.

The previous prime is 440142135373. The next prime is 440142135457. The reversal of 440142135400 is 4531241044.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3158649 + ... + 3295048.

It is an arithmetic number, because the mean of its divisors is an integer number (12003878280).

Almost surely, 2^440142135400 is an apocalyptic number.

440142135400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440142135400 is an abundant number, since it is smaller than the sum of its proper divisors (712230179480).

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

440142135400 is a wasteful number, since it uses less digits than its factorization.

440142135400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6453755 (or 6453746 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 440142135400 its reverse (4531241044), we get a palindrome (444673376444).

The spelling of 440142135400 in words is "four hundred forty billion, one hundred forty-two million, one hundred thirty-five thousand, four hundred".