67425140 has 12 divisors (see below), whose sum is σ = 141592836. Its totient is φ = 26970048.

The previous prime is 67425097. The next prime is 67425173. The reversal of 67425140 is 4152476.

It can be written as a sum of positive squares in 2 ways, for example, as 53377636 + 14047504 = 7306^2 + 3748^2 .

It is a super-2 number, since 2×67425140² = 9092299008039200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1685609 + ... + 1685648.

It is an arithmetic number, because the mean of its divisors is an integer number (11799403).

Almost surely, 2^67425140 is an apocalyptic number.

It is an amenable number.

67425140 is an abundant number, since it is smaller than the sum of its proper divisors (74167696).

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

67425140 is a wasteful number, since it uses less digits than its factorization.

67425140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371266 (or 3371264 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 67425140 is about 8211.2812642121. The cubic root of 67425140 is about 407.0120673275.

The spelling of 67425140 in words is "sixty-seven million, four hundred twenty-five thousand, one hundred forty".