3216140427 has 8 divisors (see below), whose sum is σ = 4540433616. Its totient is φ = 2017970432.

The previous prime is 3216140407. The next prime is 3216140437. The reversal of 3216140427 is 7240416123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3216140427 - 2⁶ = 3216140363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3216140394 and 3216140403.

It is not an unprimeable number, because it can be changed into a prime (3216140407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31530738 + ... + 31530839.

It is an arithmetic number, because the mean of its divisors is an integer number (567554202).

Almost surely, 2^3216140427 is an apocalyptic number.

3216140427 is a deficient number, since it is larger than the sum of its proper divisors (1324293189).

3216140427 is a wasteful number, since it uses less digits than its factorization.

3216140427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63061597.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 3216140427 is about 56711.0256211259. The cubic root of 3216140427 is about 1476.0860222814.

The spelling of 3216140427 in words is "three billion, two hundred sixteen million, one hundred forty thousand, four hundred twenty-seven".