154202252440 has 32 divisors (see below), whose sum is σ = 347012210160. Its totient is φ = 61670742400.

The previous prime is 154202252381. The next prime is 154202252447. The reversal of 154202252440 is 44252202451.

154202252440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154202252447) 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, 69151 + ... + 559630.

Almost surely, 2^154202252440 is an apocalyptic number.

154202252440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154202252440 is an abundant number, since it is smaller than the sum of its proper divisors (192809957720).

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

154202252440 is a wasteful number, since it uses less digits than its factorization.

154202252440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634923 (or 634919 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 154202252440 its reverse (44252202451), we get a palindrome (198454454891).

The spelling of 154202252440 in words is "one hundred fifty-four billion, two hundred two million, two hundred fifty-two thousand, four hundred forty".