438102212 has 6 divisors (see below), whose sum is σ = 766678878. Its totient is φ = 219051104.

The previous prime is 438102173. The next prime is 438102221. The reversal of 438102212 is 212201834.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 305760196 + 132342016 = 17486^2 + 11504^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54762773 + ... + 54762780.

It is an arithmetic number, because the mean of its divisors is an integer number (127779813).

Almost surely, 2^438102212 is an apocalyptic number.

It is an amenable number.

438102212 is a deficient number, since it is larger than the sum of its proper divisors (328576666).

438102212 is a wasteful number, since it uses less digits than its factorization.

438102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109525557 (or 109525555 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 438102212 is about 20930.8913331468. The cubic root of 438102212 is about 759.4954014286.

The spelling of 438102212 in words is "four hundred thirty-eight million, one hundred two thousand, two hundred twelve".