215040242310 has 192 divisors, whose sum is σ = 566866114560. Its totient is φ = 52009344000.

The previous prime is 215040242303. The next prime is 215040242311. The reversal of 215040242310 is 13242040512.

It is a super-2 number, since 2×215040242310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215040242311) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 180251074 + ... + 180252266.

It is an arithmetic number, because the mean of its divisors is an integer number (2952427680).

Almost surely, 2^215040242310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215040242310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283433057280).

215040242310 is an abundant number, since it is smaller than the sum of its proper divisors (351825872250).

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

215040242310 is a wasteful number, since it uses less digits than its factorization.

215040242310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455 (or 1354 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 215040242310 its reverse (13242040512), we get a palindrome (228282282822).

The spelling of 215040242310 in words is "two hundred fifteen billion, forty million, two hundred forty-two thousand, three hundred ten".