215341340740 has 48 divisors (see below), whose sum is σ = 458568678960. Its totient is φ = 84927467520.

The previous prime is 215341340729. The next prime is 215341340759. The reversal of 215341340740 is 47043143512.

It can be written as a sum of positive squares in 8 ways, for example, as 15437565504 + 199903775236 = 124248^2 + 447106^2 .

It is a junction number, because it is equal to n+sod(n) for n = 215341340696 and 215341340705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4515420 + ... + 4562860.

It is an arithmetic number, because the mean of its divisors is an integer number (9553514145).

Almost surely, 2^215341340740 is an apocalyptic number.

215341340740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215341340740 is an abundant number, since it is smaller than the sum of its proper divisors (243227338220).

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

215341340740 is a wasteful number, since it uses less digits than its factorization.

215341340740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50632 (or 50630 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 215341340740 in words is "two hundred fifteen billion, three hundred forty-one million, three hundred forty thousand, seven hundred forty".