67540000 has 120 divisors (see below), whose sum is σ = 181854288. Its totient is φ = 24480000.

The previous prime is 67539973. The next prime is 67540001. The reversal of 67540000 is 4576.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (67540001) 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 19 ways as a sum of consecutive naturals, for example, 219847 + ... + 220153.

Almost surely, 2^67540000 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 67540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90927144).

67540000 is an abundant number, since it is smaller than the sum of its proper divisors (114314288).

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

67540000 is a wasteful number, since it uses less digits than its factorization.

67540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 67540000 is about 8218.2723245217. The cubic root of 67540000 is about 407.2430537963.

Adding to 67540000 its reverse (4576), we get a palindrome (67544576).

It can be divided in two parts, 675 and 40000, that multiplied together give a cube (27000000 = 300³).

The spelling of 67540000 in words is "sixty-seven million, five hundred forty thousand".