67885240 has 32 divisors (see below), whose sum is σ = 154234080. Its totient is φ = 26888832.

The previous prime is 67885219. The next prime is 67885247. The reversal of 67885240 is 4258876.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 67885193 and 67885202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67885247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4119 + ... + 12358.

It is an arithmetic number, because the mean of its divisors is an integer number (4819815).

Almost surely, 2^67885240 is an apocalyptic number.

67885240 is the 4120-th decagonal number.

It is an amenable number.

67885240 is an abundant number, since it is smaller than the sum of its proper divisors (86348840).

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

67885240 is a wasteful number, since it uses less digits than its factorization.

67885240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16591 (or 16587 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 67885240 is about 8239.2499658646. The cubic root of 67885240 is about 407.9357677943.

The spelling of 67885240 in words is "sixty-seven million, eight hundred eighty-five thousand, two hundred forty".