240020826157 has 8 divisors (see below), whose sum is σ = 276403482432. Its totient is φ = 204161661600.

The previous prime is 240020826127. The next prime is 240020826181. The reversal of 240020826157 is 751628020042.

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 a de Polignac number, because none of the positive numbers 2^k-240020826157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240020826107) 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, 130871944 + ... + 130873777.

It is an arithmetic number, because the mean of its divisors is an integer number (34550435304).

Almost surely, 2^240020826157 is an apocalyptic number.

It is an amenable number.

240020826157 is a deficient number, since it is larger than the sum of its proper divisors (36382656275).

240020826157 is a wasteful number, since it uses less digits than its factorization.

240020826157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261745859.

The product of its (nonzero) digits is 53760, while the sum is 37.

Adding to 240020826157 its reverse (751628020042), we get a palindrome (991648846199).

The spelling of 240020826157 in words is "two hundred forty billion, twenty million, eight hundred twenty-six thousand, one hundred fifty-seven".