216412570 has 16 divisors (see below), whose sum is σ = 424955808. Its totient is φ = 78695440.

The previous prime is 216412561. The next prime is 216412571. The reversal of 216412570 is 75214612.

216412570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216412571) 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, 983584 + ... + 983803.

It is an arithmetic number, because the mean of its divisors is an integer number (26559738).

Almost surely, 2^216412570 is an apocalyptic number.

216412570 is a deficient number, since it is larger than the sum of its proper divisors (208543238).

216412570 is a wasteful number, since it uses less digits than its factorization.

216412570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967405.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 216412570 is about 14710.9676772128. The cubic root of 216412570 is about 600.3817662986.

The spelling of 216412570 in words is "two hundred sixteen million, four hundred twelve thousand, five hundred seventy".