67440364 has 6 divisors (see below), whose sum is σ = 118020644. Its totient is φ = 33720180.

The previous prime is 67440353. The next prime is 67440403. The reversal of 67440364 is 46304476.

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 as a sum of consecutive naturals, namely, 8430042 + ... + 8430049.

Almost surely, 2^67440364 is an apocalyptic number.

It is an amenable number.

67440364 is a deficient number, since it is larger than the sum of its proper divisors (50580280).

67440364 is a wasteful number, since it uses less digits than its factorization.

67440364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16860095 (or 16860093 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

The square root of 67440364 is about 8212.2082292158. The cubic root of 67440364 is about 407.0426982633.

The spelling of 67440364 in words is "sixty-seven million, four hundred forty thousand, three hundred sixty-four".