240142032420 has 96 divisors (see below), whose sum is σ = 679044860928. Its totient is φ = 63405455232.

The previous prime is 240142032407. The next prime is 240142032443. The reversal of 240142032420 is 24230241042.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13389579 + ... + 13407501.

It is an arithmetic number, because the mean of its divisors is an integer number (7073383968).

Almost surely, 2^240142032420 is an apocalyptic number.

240142032420 is a gapful number since it is divisible by the number (20) 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 240142032420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339522430464).

240142032420 is an abundant number, since it is smaller than the sum of its proper divisors (438902828508).

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

240142032420 is a wasteful number, since it uses less digits than its factorization.

240142032420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20129 (or 20127 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 240142032420 its reverse (24230241042), we get a palindrome (264372273462).

The spelling of 240142032420 in words is "two hundred forty billion, one hundred forty-two million, thirty-two thousand, four hundred twenty".