216012434 has 16 divisors (see below), whose sum is σ = 357449760. Its totient is φ = 97083360.

The previous prime is 216012431. The next prime is 216012439. The reversal of 216012434 is 434210612.

It is a super-2 number, since 2×216012434² = 93322743285208712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216012431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53204 + ... + 57119.

It is an arithmetic number, because the mean of its divisors is an integer number (22340610).

Almost surely, 2^216012434 is an apocalyptic number.

216012434 is a deficient number, since it is larger than the sum of its proper divisors (141437326).

216012434 is a wasteful number, since it uses less digits than its factorization.

216012434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110425.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 216012434 is about 14697.3614638819. The cubic root of 216012434 is about 600.0115127421.

The spelling of 216012434 in words is "two hundred sixteen million, twelve thousand, four hundred thirty-four".