154420432240 has 20 divisors (see below), whose sum is σ = 359027505144. Its totient is φ = 61768172864.

The previous prime is 154420432237. The next prime is 154420432247. The reversal of 154420432240 is 42234024451.

154420432240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154420432247) 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 3 ways as a sum of consecutive naturals, for example, 965127622 + ... + 965127781.

Almost surely, 2^154420432240 is an apocalyptic number.

154420432240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154420432240 is an abundant number, since it is smaller than the sum of its proper divisors (204607072904).

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

154420432240 is a wasteful number, since it uses less digits than its factorization.

154420432240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930255416 (or 1930255410 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 154420432240 its reverse (42234024451), we get a palindrome (196654456691).

The spelling of 154420432240 in words is "one hundred fifty-four billion, four hundred twenty million, four hundred thirty-two thousand, two hundred forty".