67289540 has 24 divisors (see below), whose sum is σ = 143301312. Its totient is φ = 26536160.

The previous prime is 67289503. The next prime is 67289549. The reversal of 67289540 is 4598276.

It is not an unprimeable number, because it can be changed into a prime (67289549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22274 + ... + 25113.

It is an arithmetic number, because the mean of its divisors is an integer number (5970888).

Almost surely, 2^67289540 is an apocalyptic number.

It is an amenable number.

67289540 is an abundant number, since it is smaller than the sum of its proper divisors (76011772).

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

67289540 is a wasteful number, since it uses less digits than its factorization.

67289540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47467 (or 47465 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 67289540 is about 8203.0201755207. The cubic root of 67289540 is about 406.7390342710.

The spelling of 67289540 in words is "sixty-seven million, two hundred eighty-nine thousand, five hundred forty".