67949320 has 64 divisors (see below), whose sum is σ = 166536000. Its totient is φ = 24853248.

The previous prime is 67949311. The next prime is 67949327. The reversal of 67949320 is 2394976.

It is a super-2 number, since 2×67949320² = 9234220176924800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (67949327) 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, 20499 + ... + 23581.

It is an arithmetic number, because the mean of its divisors is an integer number (2602125).

Almost surely, 2^67949320 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 67949320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83268000).

67949320 is an abundant number, since it is smaller than the sum of its proper divisors (98586680).

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

67949320 is a wasteful number, since it uses less digits than its factorization.

67949320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3142 (or 3138 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 67949320 is about 8243.1377520942. The cubic root of 67949320 is about 408.0640838722.

The spelling of 67949320 in words is "sixty-seven million, nine hundred forty-nine thousand, three hundred twenty".