3216478402 has 8 divisors (see below), whose sum is σ = 4833168912. Its totient is φ = 1605422100.

The previous prime is 3216478373. The next prime is 3216478409. The reversal of 3216478402 is 2048746123.

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

It is not an unprimeable number, because it can be changed into a prime (3216478409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1407124 + ... + 1409407.

It is an arithmetic number, because the mean of its divisors is an integer number (604146114).

Almost surely, 2^3216478402 is an apocalyptic number.

3216478402 is a deficient number, since it is larger than the sum of its proper divisors (1616690510).

3216478402 is a wasteful number, since it uses less digits than its factorization.

3216478402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817104.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 3216478402 is about 56714.0053425959. The cubic root of 3216478402 is about 1476.1377263565.

The spelling of 3216478402 in words is "three billion, two hundred sixteen million, four hundred seventy-eight thousand, four hundred two".