216741434 has 32 divisors (see below), whose sum is σ = 402433920. Its totient is φ = 85252032.

The previous prime is 216741431. The next prime is 216741439. The reversal of 216741434 is 434147612.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 216741434.

It is not an unprimeable number, because it can be changed into a prime (216741431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29252 + ... + 35904.

It is an arithmetic number, because the mean of its divisors is an integer number (12576060).

Almost surely, 2^216741434 is an apocalyptic number.

216741434 is a deficient number, since it is larger than the sum of its proper divisors (185692486).

216741434 is a wasteful number, since it uses less digits than its factorization.

216741434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6854.

The product of its digits is 16128, while the sum is 32.

The square root of 216741434 is about 14722.1409448490. The cubic root of 216741434 is about 600.6857289574.

The spelling of 216741434 in words is "two hundred sixteen million, seven hundred forty-one thousand, four hundred thirty-four".