67252240 has 40 divisors (see below), whose sum is σ = 170578368. Its totient is φ = 24455040.

The previous prime is 67252223. The next prime is 67252277. The reversal of 67252240 is 4225276.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 67252199 and 67252208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37332 + ... + 39091.

Almost surely, 2^67252240 is an apocalyptic number.

It is an amenable number.

67252240 is an abundant number, since it is smaller than the sum of its proper divisors (103326128).

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

67252240 is a wasteful number, since it uses less digits than its factorization.

67252240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76447 (or 76441 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 67252240 is about 8200.7463075015. The cubic root of 67252240 is about 406.6638657277.

The spelling of 67252240 in words is "sixty-seven million, two hundred fifty-two thousand, two hundred forty".