240420402444 has 24 divisors (see below), whose sum is σ = 560989073008. Its totient is φ = 80138972160.

The previous prime is 240420402433. The next prime is 240420402449. The reversal of 240420402444 is 444204024042.

It is a super-2 number, since 2×240420402444² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (240420402449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262964 + ... + 1440804.

Almost surely, 2^240420402444 is an apocalyptic number.

It is an amenable number.

240420402444 is an abundant number, since it is smaller than the sum of its proper divisors (320568670564).

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

240420402444 is a wasteful number, since it uses less digits than its factorization.

240420402444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290505 (or 290503 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 240420402444 its reverse (444204024042), we get a palindrome (684624426486).

The spelling of 240420402444 in words is "two hundred forty billion, four hundred twenty million, four hundred two thousand, four hundred forty-four".