67961240 has 48 divisors (see below), whose sum is σ = 162464400. Its totient is φ = 25581056.

The previous prime is 67961237. The next prime is 67961263. The reversal of 67961240 is 4216976.

It is a self number, because there is not a number n which added to its sum of digits gives 67961240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8621 + ... + 14499.

It is an arithmetic number, because the mean of its divisors is an integer number (3384675).

Almost surely, 2^67961240 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 67961240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81232200).

67961240 is an abundant number, since it is smaller than the sum of its proper divisors (94503160).

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

67961240 is a wasteful number, since it uses less digits than its factorization.

67961240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5924 (or 5903 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 67961240 is about 8243.8607460340. The cubic root of 67961240 is about 408.0879440054.

The spelling of 67961240 in words is "sixty-seven million, nine hundred sixty-one thousand, two hundred forty".