67440250 has 16 divisors (see below), whose sum is σ = 126248616. Its totient is φ = 26976000.

The previous prime is 67440229. The next prime is 67440259. The reversal of 67440250 is 5204476.

It can be written as a sum of positive squares in 4 ways, for example, as 43125489 + 24314761 = 6567^2 + 4931^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67440259) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 134631 + ... + 135130.

Almost surely, 2^67440250 is an apocalyptic number.

67440250 is a deficient number, since it is larger than the sum of its proper divisors (58808366).

67440250 is a wasteful number, since it uses less digits than its factorization.

67440250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269778 (or 269768 counting only the distinct ones).

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

The square root of 67440250 is about 8212.2012883270. The cubic root of 67440250 is about 407.0424689106.

The spelling of 67440250 in words is "sixty-seven million, four hundred forty thousand, two hundred fifty".