215046460 has 36 divisors (see below), whose sum is σ = 457260552. Its totient is φ = 84945856.

The previous prime is 215046449. The next prime is 215046463. The reversal of 215046460 is 64640512.

215046460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215046463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 678222 + ... + 678538.

It is an arithmetic number, because the mean of its divisors is an integer number (12701682).

Almost surely, 2^215046460 is an apocalyptic number.

215046460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215046460 is an abundant number, since it is smaller than the sum of its proper divisors (242214092).

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

215046460 is a wasteful number, since it uses less digits than its factorization.

215046460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 215046460 is about 14664.4624858874. The cubic root of 215046460 is about 599.1157901877.

Adding to 215046460 its reverse (64640512), we get a palindrome (279686972).

The spelling of 215046460 in words is "two hundred fifteen million, forty-six thousand, four hundred sixty".