67872030 has 32 divisors (see below), whose sum is σ = 163292544. Its totient is φ = 18054816.

The previous prime is 67872029. The next prime is 67872031. The reversal of 67872030 is 3027876.

It is an interprime number because it is at equal distance from previous prime (67872029) and next prime (67872031).

It is a super-2 number, since 2×67872030² = 9213224912641800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 67871982 and 67872000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67872031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10737 + ... + 15843.

It is an arithmetic number, because the mean of its divisors is an integer number (5102892).

Almost surely, 2^67872030 is an apocalyptic number.

67872030 is an abundant number, since it is smaller than the sum of its proper divisors (95420514).

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

67872030 is a wasteful number, since it uses less digits than its factorization.

67872030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 67872030 is about 8238.4482762229. The cubic root of 67872030 is about 407.9093055811.

The spelling of 67872030 in words is "sixty-seven million, eight hundred seventy-two thousand, thirty".