402140216 has 16 divisors (see below), whose sum is σ = 780013800. Its totient is φ = 194136544.

The previous prime is 402140213. The next prime is 402140227. The reversal of 402140216 is 612041204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402140213) 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, 866450 + ... + 866913.

Almost surely, 2^402140216 is an apocalyptic number.

It is an amenable number.

402140216 is a deficient number, since it is larger than the sum of its proper divisors (377873584).

402140216 is a wasteful number, since it uses less digits than its factorization.

402140216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733398 (or 1733394 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 402140216 is about 20053.4340201373. The cubic root of 402140216 is about 738.1180668080.

The spelling of 402140216 in words is "four hundred two million, one hundred forty thousand, two hundred sixteen".