67722340 has 48 divisors (see below), whose sum is σ = 165618432. Its totient is φ = 22778496.

The previous prime is 67722301. The next prime is 67722353. The reversal of 67722340 is 4322776.

It is a happy number.

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, 2857 + ... + 11983.

It is an arithmetic number, because the mean of its divisors is an integer number (3450384).

Almost surely, 2^67722340 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 67722340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82809216).

67722340 is an abundant number, since it is smaller than the sum of its proper divisors (97896092).

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

67722340 is a wasteful number, since it uses less digits than its factorization.

67722340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196 (or 9194 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 67722340 is about 8229.3584197068. The cubic root of 67722340 is about 407.6092070587.

The spelling of 67722340 in words is "sixty-seven million, seven hundred twenty-two thousand, three hundred forty".