213066402 has 8 divisors (see below), whose sum is σ = 426132816. Its totient is φ = 71022132.

The previous prime is 213066383. The next prime is 213066407. The reversal of 213066402 is 204660312.

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

213066402 is an admirable number.

It is a super-2 number, since 2×213066402² = 90794583322451208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213066407) 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, 17755528 + ... + 17755539.

It is an arithmetic number, because the mean of its divisors is an integer number (53266602).

Almost surely, 2^213066402 is an apocalyptic number.

213066402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213066402 is a wasteful number, since it uses less digits than its factorization.

213066402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35511072.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 213066402 is about 14596.7942370919. The cubic root of 213066402 is about 597.2713148297.

The spelling of 213066402 in words is "two hundred thirteen million, sixty-six thousand, four hundred two".