240404064420 has 96 divisors (see below), whose sum is σ = 748295009280. Its totient is φ = 57267463680.

The previous prime is 240404064331. The next prime is 240404064479. The reversal of 240404064420 is 24460404042.

It is a super-2 number, since 2×240404064420² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4946955 + ... + 4995314.

It is an arithmetic number, because the mean of its divisors is an integer number (7794739680).

Almost surely, 2^240404064420 is an apocalyptic number.

240404064420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240404064420 is an abundant number, since it is smaller than the sum of its proper divisors (507890944860).

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

240404064420 is a wasteful number, since it uses less digits than its factorization.

240404064420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9942325 (or 9942323 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 240404064420 its reverse (24460404042), we get a palindrome (264864468462).

The spelling of 240404064420 in words is "two hundred forty billion, four hundred four million, sixty-four thousand, four hundred twenty".