67038440 has 32 divisors (see below), whose sum is σ = 172385280. Its totient is φ = 22984512.

The previous prime is 67038431. The next prime is 67038457. The reversal of 67038440 is 4483076.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 67038397 and 67038406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119432 + ... + 119991.

It is an arithmetic number, because the mean of its divisors is an integer number (5387040).

Almost surely, 2^67038440 is an apocalyptic number.

It is an amenable number.

67038440 is an abundant number, since it is smaller than the sum of its proper divisors (105346840).

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

67038440 is a wasteful number, since it uses less digits than its factorization.

67038440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239441 (or 239437 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 67038440 is about 8187.7005318954. The cubic root of 67038440 is about 406.2324697761.

The spelling of 67038440 in words is "sixty-seven million, thirty-eight thousand, four hundred forty".