67479040 has 80 divisors (see below), whose sum is σ = 165824208. Its totient is φ = 26320896.

The previous prime is 67479007. The next prime is 67479043. The reversal of 67479040 is 4097476.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67479043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109774 + ... + 110386.

Almost surely, 2^67479040 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 67479040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82912104).

67479040 is an abundant number, since it is smaller than the sum of its proper divisors (98345168).

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

67479040 is an equidigital number, since it uses as much as digits as its factorization.

67479040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 67479040 is about 8214.5626785606. The cubic root of 67479040 is about 407.1204942795.

The spelling of 67479040 in words is "sixty-seven million, four hundred seventy-nine thousand, forty".