67219012 has 24 divisors (see below), whose sum is σ = 135152640. Its totient is φ = 28655040.

The previous prime is 67218971. The next prime is 67219021. The reversal of 67219012 is 21091276.

It is a happy number.

It is a super-2 number, since 2×67219012² = 9036791148512288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937 + ... + 11632.

It is an arithmetic number, because the mean of its divisors is an integer number (5631360).

Almost surely, 2^67219012 is an apocalyptic number.

It is an amenable number.

67219012 is an abundant number, since it is smaller than the sum of its proper divisors (67933628).

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

67219012 is a wasteful number, since it uses less digits than its factorization.

67219012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12771 (or 12769 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 67219012 is about 8198.7201440225. The cubic root of 67219012 is about 406.5968798400.

The spelling of 67219012 in words is "sixty-seven million, two hundred nineteen thousand, twelve".