240489649620 has 960 divisors, whose sum is σ = 904709836800. Its totient is φ = 53059069440.

The previous prime is 240489649571. The next prime is 240489649661. The reversal of 240489649620 is 26946984042.

240489649620 is a `hidden beast` number, since 2 + 4 + 0 + 4 + 8 + 9 + 6 + 4 + 9 + 620 = 666.

It is a super-2 number, since 2×240489649620² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 3044172741 + ... + 3044172819.

It is an arithmetic number, because the mean of its divisors is an integer number (942406080).

Almost surely, 2^240489649620 is an apocalyptic number.

240489649620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240489649620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452354918400).

240489649620 is an abundant number, since it is smaller than the sum of its proper divisors (664220187180).

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

240489649620 is a wasteful number, since it uses less digits than its factorization.

240489649620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 240489649620 in words is "two hundred forty billion, four hundred eighty-nine million, six hundred forty-nine thousand, six hundred twenty".