240403121994 has 16 divisors (see below), whose sum is σ = 549492850368. Its totient is φ = 68686606272.

The previous prime is 240403121993. The next prime is 240403122059. The reversal of 240403121994 is 499121304042.

It is a super-2 number, since 2×240403121994² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (240403121993) 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, 2861941887 + ... + 2861941970.

It is an arithmetic number, because the mean of its divisors is an integer number (34343303148).

Almost surely, 2^240403121994 is an apocalyptic number.

240403121994 is an abundant number, since it is smaller than the sum of its proper divisors (309089728374).

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

240403121994 is a wasteful number, since it uses less digits than its factorization.

240403121994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5723883869.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 240403121994 in words is "two hundred forty billion, four hundred three million, one hundred twenty-one thousand, nine hundred ninety-four".