67216290 has 32 divisors (see below), whose sum is σ = 162233280. Its totient is φ = 17822784.

The previous prime is 67216273. The next prime is 67216307. The reversal of 67216290 is 9261276.

It is an interprime number because it is at equal distance from previous prime (67216273) and next prime (67216307).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 889 + ... + 11628.

It is an arithmetic number, because the mean of its divisors is an integer number (5069790).

Almost surely, 2^67216290 is an apocalyptic number.

67216290 is an abundant number, since it is smaller than the sum of its proper divisors (95016990).

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

67216290 is a wasteful number, since it uses less digits than its factorization.

67216290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12706.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 67216290 is about 8198.5541408226. The cubic root of 67216290 is about 406.5913914540.

The spelling of 67216290 in words is "sixty-seven million, two hundred sixteen thousand, two hundred ninety".