215040470 has 8 divisors (see below), whose sum is σ = 387072864. Its totient is φ = 86016184.

The previous prime is 215040457. The next prime is 215040473. The reversal of 215040470 is 74040512.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215040473) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10752014 + ... + 10752033.

It is an arithmetic number, because the mean of its divisors is an integer number (48384108).

Almost surely, 2^215040470 is an apocalyptic number.

215040470 is a deficient number, since it is larger than the sum of its proper divisors (172032394).

215040470 is a wasteful number, since it uses less digits than its factorization.

215040470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21504054.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 215040470 is about 14664.2582492262. The cubic root of 215040470 is about 599.1102274566.

Adding to 215040470 its reverse (74040512), we get a palindrome (289080982).

The spelling of 215040470 in words is "two hundred fifteen million, forty thousand, four hundred seventy".