240122620643 has 8 divisors (see below), whose sum is σ = 259202829600. Its totient is φ = 221762419648.

The previous prime is 240122620553. The next prime is 240122620649. The reversal of 240122620643 is 346026221042.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240122620643 - 2¹⁸ = 240122358499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240122620649) 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, 180001298 + ... + 180002631.

It is an arithmetic number, because the mean of its divisors is an integer number (32400353700).

Almost surely, 2^240122620643 is an apocalyptic number.

240122620643 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

240122620643 is a deficient number, since it is larger than the sum of its proper divisors (19080208957).

240122620643 is a wasteful number, since it uses less digits than its factorization.

240122620643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360003981.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 240122620643 its reverse (346026221042), we get a palindrome (586148841685).

The spelling of 240122620643 in words is "two hundred forty billion, one hundred twenty-two million, six hundred twenty thousand, six hundred forty-three".