216477402 has 64 divisors (see below), whose sum is σ = 470016000. Its totient is φ = 66306240.

The previous prime is 216477389. The next prime is 216477407. The reversal of 216477402 is 204774612.

It is not an unprimeable number, because it can be changed into a prime (216477407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361099 + ... + 361697.

It is an arithmetic number, because the mean of its divisors is an integer number (7344000).

Almost surely, 2^216477402 is an apocalyptic number.

216477402 is an abundant number, since it is smaller than the sum of its proper divisors (253538598).

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

216477402 is a wasteful number, since it uses less digits than its factorization.

216477402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 216477402 is about 14713.1710382229. The cubic root of 216477402 is about 600.4417136242.

The spelling of 216477402 in words is "two hundred sixteen million, four hundred seventy-seven thousand, four hundred two".