67264540 has 24 divisors (see below), whose sum is σ = 161435232. Its totient is φ = 23062080.

The previous prime is 67264511. The next prime is 67264573. The reversal of 67264540 is 4546276.

It is a junction number, because it is equal to n+sod(n) for n = 67264496 and 67264505.

It is a congruent number.

It is an unprimeable number.

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, 240091 + ... + 240370.

It is an arithmetic number, because the mean of its divisors is an integer number (6726468).

Almost surely, 2^67264540 is an apocalyptic number.

It is an amenable number.

67264540 is an abundant number, since it is smaller than the sum of its proper divisors (94170692).

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

67264540 is a wasteful number, since it uses less digits than its factorization.

67264540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480477 (or 480475 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 67264540 is about 8201.4962049616. The cubic root of 67264540 is about 406.6886562806.

The spelling of 67264540 in words is "sixty-seven million, two hundred sixty-four thousand, five hundred forty".