240442151420 has 24 divisors (see below), whose sum is σ = 516671043504. Its totient is φ = 93940189056.

The previous prime is 240442151419. The next prime is 240442151441. The reversal of 240442151420 is 24151244042.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139791089 + ... + 139792808.

It is an arithmetic number, because the mean of its divisors is an integer number (21527960146).

Almost surely, 2^240442151420 is an apocalyptic number.

240442151420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240442151420 is an abundant number, since it is smaller than the sum of its proper divisors (276228892084).

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

240442151420 is a wasteful number, since it uses less digits than its factorization.

240442151420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279583949 (or 279583947 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 240442151420 its reverse (24151244042), we get a palindrome (264593395462).

The spelling of 240442151420 in words is "two hundred forty billion, four hundred forty-two million, one hundred fifty-one thousand, four hundred twenty".