67428250 has 16 divisors (see below), whose sum is σ = 126226152. Its totient is φ = 26971200.

The previous prime is 67428247. The next prime is 67428253. The reversal of 67428250 is 5282476.

It is an interprime number because it is at equal distance from previous prime (67428247) and next prime (67428253).

It can be written as a sum of positive squares in 4 ways, for example, as 34492129 + 32936121 = 5873^2 + 5739^2 .

It is not an unprimeable number, because it can be changed into a prime (67428253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134607 + ... + 135106.

Almost surely, 2^67428250 is an apocalyptic number.

67428250 is a deficient number, since it is larger than the sum of its proper divisors (58797902).

67428250 is a wasteful number, since it uses less digits than its factorization.

67428250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269730 (or 269720 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 67428250 is about 8211.4706356413. The cubic root of 67428250 is about 407.0183250728.

The spelling of 67428250 in words is "sixty-seven million, four hundred twenty-eight thousand, two hundred fifty".