240055420 has 24 divisors (see below), whose sum is σ = 549945648. Its totient is φ = 87292800.

The previous prime is 240055397. The next prime is 240055423. The reversal of 240055420 is 24550042.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 240055391 and 240055400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240055423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545361 + ... + 545800.

It is an arithmetic number, because the mean of its divisors is an integer number (22914402).

Almost surely, 2^240055420 is an apocalyptic number.

240055420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240055420 is an abundant number, since it is smaller than the sum of its proper divisors (309890228).

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

240055420 is a wasteful number, since it uses less digits than its factorization.

240055420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091181 (or 1091179 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 240055420 is about 15493.7219543917. The cubic root of 240055420 is about 621.4943316275.

The spelling of 240055420 in words is "two hundred forty million, fifty-five thousand, four hundred twenty".