240018746040 has 48 divisors (see below), whose sum is σ = 780060925800. Its totient is φ = 64004998848.

The previous prime is 240018745997. The next prime is 240018746041. The reversal of 240018746040 is 40647810042.

240018746040 is a `hidden beast` number, since 2 + 40 + 0 + 1 + 8 + 7 + 4 + 604 + 0 = 666.

It is a super-2 number, since 2×240018746040² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 240018745986 and 240018746004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240018746041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333359010 + ... + 333359729.

Almost surely, 2^240018746040 is an apocalyptic number.

240018746040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240018746040 is an abundant number, since it is smaller than the sum of its proper divisors (540042179760).

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

240018746040 is a wasteful number, since it uses less digits than its factorization.

240018746040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666718756 (or 666718749 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 240018746040 in words is "two hundred forty billion, eighteen million, seven hundred forty-six thousand, forty".