240404210442 has 32 divisors (see below), whose sum is σ = 582798087360. Its totient is φ = 72849760560.

The previous prime is 240404210429. The next prime is 240404210443. The reversal of 240404210442 is 244012404042.

240404210442 is a `hidden beast` number, since 2 + 4 + 0 + 4 + 0 + 4 + 210 + 442 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (240404210443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202359853 + ... + 202361040.

It is an arithmetic number, because the mean of its divisors is an integer number (18212440230).

Almost surely, 2^240404210442 is an apocalyptic number.

240404210442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

240404210442 is an abundant number, since it is smaller than the sum of its proper divisors (342393876918).

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

240404210442 is a wasteful number, since it uses less digits than its factorization.

240404210442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404720915 (or 404720909 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 240404210442 its reverse (244012404042), we get a palindrome (484416614484).

The spelling of 240404210442 in words is "two hundred forty billion, four hundred four million, two hundred ten thousand, four hundred forty-two".