67662420 has 192 divisors, whose sum is σ = 233318400. Its totient is φ = 14307840.

The previous prime is 67662407. The next prime is 67662421. The reversal of 67662420 is 2426676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67662421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 486711 + ... + 486849.

It is an arithmetic number, because the mean of its divisors is an integer number (1215200).

Almost surely, 2^67662420 is an apocalyptic number.

67662420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67662420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116659200).

67662420 is an abundant number, since it is smaller than the sum of its proper divisors (165655980).

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

67662420 is a wasteful number, since it uses less digits than its factorization.

67662420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 67662420 is about 8225.7169900259. The cubic root of 67662420 is about 407.4889555013.

The spelling of 67662420 in words is "sixty-seven million, six hundred sixty-two thousand, four hundred twenty".