67652540 has 48 divisors (see below), whose sum is σ = 154398720. Its totient is φ = 24805440.

The previous prime is 67652491. The next prime is 67652561. The reversal of 67652540 is 4525676.

It is a self number, because there is not a number n which added to its sum of digits gives 67652540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8909 + ... + 14651.

It is an arithmetic number, because the mean of its divisors is an integer number (3216640).

Almost surely, 2^67652540 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 67652540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77199360).

67652540 is an abundant number, since it is smaller than the sum of its proper divisors (86746180).

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

67652540 is a wasteful number, since it uses less digits than its factorization.

67652540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5802 (or 5800 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 67652540 is about 8225.1164125500. The cubic root of 67652540 is about 407.4691208237.

The spelling of 67652540 in words is "sixty-seven million, six hundred fifty-two thousand, five hundred forty".