152431023440 has 40 divisors (see below), whose sum is σ = 363046091688. Its totient is φ = 59485276160.

The previous prime is 152431023421. The next prime is 152431023443. The reversal of 152431023440 is 44320134251.

152431023440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9731427904 + 142699595536 = 98648^2 + 377756^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152431023443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23233157 + ... + 23239716.

Almost surely, 2^152431023440 is an apocalyptic number.

152431023440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152431023440 is an abundant number, since it is smaller than the sum of its proper divisors (210615068248).

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

152431023440 is a wasteful number, since it uses less digits than its factorization.

152431023440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46472927 (or 46472921 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 152431023440 its reverse (44320134251), we get a palindrome (196751157691).

The spelling of 152431023440 in words is "one hundred fifty-two billion, four hundred thirty-one million, twenty-three thousand, four hundred forty".