67211040 has 96 divisors (see below), whose sum is σ = 228021696. Its totient is φ = 16542720.

The previous prime is 67211033. The next prime is 67211041. The reversal of 67211040 is 4011276.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 67210998 and 67211016.

It is not an unprimeable number, because it can be changed into a prime (67211041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855 + ... + 11625.

It is an arithmetic number, because the mean of its divisors is an integer number (2375226).

Almost surely, 2^67211040 is an apocalyptic number.

67211040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67211040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114010848).

67211040 is an abundant number, since it is smaller than the sum of its proper divisors (160810656).

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

67211040 is a wasteful number, since it uses less digits than its factorization.

67211040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10802 (or 10794 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 67211040 is about 8198.2339561640. The cubic root of 67211040 is about 406.5808054270.

The spelling of 67211040 in words is "sixty-seven million, two hundred eleven thousand, forty".