67440975 has 48 divisors (see below), whose sum is σ = 134158080. Its totient is φ = 29203200.

The previous prime is 67440959. The next prime is 67441009. The reversal of 67440975 is 57904476.

It is not a de Polignac number, because 67440975 - 2⁴ = 67440959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6595 + ... + 13355.

It is an arithmetic number, because the mean of its divisors is an integer number (2794960).

Almost surely, 2^67440975 is an apocalyptic number.

67440975 is a deficient number, since it is larger than the sum of its proper divisors (66717105).

67440975 is a wasteful number, since it uses less digits than its factorization.

67440975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800 (or 6795 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 67440975 is about 8212.2454298444. The cubic root of 67440975 is about 407.0439275091.

The spelling of 67440975 in words is "sixty-seven million, four hundred forty thousand, nine hundred seventy-five".