67921120 has 48 divisors (see below), whose sum is σ = 169909488. Its totient is φ = 25569280.

The previous prime is 67921109. The next prime is 67921127. The reversal of 67921120 is 2112976.

It is a happy number.

It is a super-2 number, since 2×67921120² = 9226557084108800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67921127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9766 + ... + 15205.

It is an arithmetic number, because the mean of its divisors is an integer number (3539781).

Almost surely, 2^67921120 is an apocalyptic number.

It is an amenable number.

67921120 is an abundant number, since it is smaller than the sum of its proper divisors (101988368).

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

67921120 is a wasteful number, since it uses less digits than its factorization.

67921120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25003 (or 24995 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 67921120 is about 8241.4270608918. The cubic root of 67921120 is about 408.0076251298.

The spelling of 67921120 in words is "sixty-seven million, nine hundred twenty-one thousand, one hundred twenty".