143242240023440 has 80 divisors (see below), whose sum is σ = 347520733820928. Its totient is φ = 54805316003328.

The previous prime is 143242240023409. The next prime is 143242240023451. The reversal of 143242240023440 is 44320042242341.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 143242240023440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380292482 + ... + 380668958.

Almost surely, 2^{143242240023440} is an apocalyptic number.

143242240023440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143242240023440 is an abundant number, since it is smaller than the sum of its proper divisors (204278493797488).

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

143242240023440 is a wasteful number, since it uses less digits than its factorization.

143242240023440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583296 (or 583290 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 143242240023440 its reverse (44320042242341), we get a palindrome (187562282265781).

The spelling of 143242240023440 in words is "one hundred forty-three trillion, two hundred forty-two billion, two hundred forty million, twenty-three thousand, four hundred forty".