67279680 has 224 divisors, whose sum is σ = 256032000. Its totient is φ = 16533504.

The previous prime is 67279673. The next prime is 67279697. The reversal of 67279680 is 8697276.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112021 + ... + 112619.

It is an arithmetic number, because the mean of its divisors is an integer number (1143000).

Almost surely, 2^67279680 is an apocalyptic number.

67279680 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 67279680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128016000).

67279680 is an abundant number, since it is smaller than the sum of its proper divisors (188752320).

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

67279680 is a wasteful number, since it uses less digits than its factorization.

67279680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 67279680 is about 8202.4191553468. The cubic root of 67279680 is about 406.7191666820.

The spelling of 67279680 in words is "sixty-seven million, two hundred seventy-nine thousand, six hundred eighty".