67214532 has 144 divisors (see below), whose sum is σ = 209139840. Its totient is φ = 16389120.

The previous prime is 67214527. The next prime is 67214557. The reversal of 67214532 is 23541276.

It is a self number, because there is not a number n which added to its sum of digits gives 67214532.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 172594 + ... + 172982.

It is an arithmetic number, because the mean of its divisors is an integer number (1452360).

Almost surely, 2^67214532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67214532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104569920).

67214532 is an abundant number, since it is smaller than the sum of its proper divisors (141925308).

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

67214532 is a wasteful number, since it uses less digits than its factorization.

67214532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 429 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 67214532 is about 8198.4469260952. The cubic root of 67214532 is about 406.5878467087.

The spelling of 67214532 in words is "sixty-seven million, two hundred fourteen thousand, five hundred thirty-two".