240090065920 has 176 divisors, whose sum is σ = 590083089408. Its totient is φ = 93702389760.

The previous prime is 240090065911. The next prime is 240090065923. The reversal of 240090065920 is 29560090042.

It is a self number, because there is not a number n which added to its sum of digits gives 240090065920.

It is not an unprimeable number, because it can be changed into a prime (240090065923) 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, 39661614 + ... + 39667666.

Almost surely, 2^240090065920 is an apocalyptic number.

240090065920 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 240090065920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295041544704).

240090065920 is an abundant number, since it is smaller than the sum of its proper divisors (349993023488).

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

240090065920 is a wasteful number, since it uses less digits than its factorization.

240090065920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6266 (or 6248 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 240090065920 in words is "two hundred forty billion, ninety million, sixty-five thousand, nine hundred twenty".