3216293438 has 16 divisors (see below), whose sum is σ = 5112450000. Its totient is φ = 1513279872.

The previous prime is 3216293429. The next prime is 3216293449. The reversal of 3216293438 is 8343926123.

It is a junction number, because it is equal to n+sod(n) for n = 3216293395 and 3216293404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278363 + ... + 289686.

It is an arithmetic number, because the mean of its divisors is an integer number (319528125).

Almost surely, 2^3216293438 is an apocalyptic number.

3216293438 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3216293438 is a deficient number, since it is larger than the sum of its proper divisors (1896156562).

3216293438 is a wasteful number, since it uses less digits than its factorization.

3216293438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568219.

The product of its digits is 186624, while the sum is 41.

The square root of 3216293438 is about 56712.3746461035. The cubic root of 3216293438 is about 1476.1094306515.

The spelling of 3216293438 in words is "three billion, two hundred sixteen million, two hundred ninety-three thousand, four hundred thirty-eight".