67473720 has 192 divisors, whose sum is σ = 237556800. Its totient is φ = 16558080.

The previous prime is 67473719. The next prime is 67473737. The reversal of 67473720 is 2737476.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239980 + ... + 240260.

It is an arithmetic number, because the mean of its divisors is an integer number (1237275).

Almost surely, 2^67473720 is an apocalyptic number.

67473720 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 67473720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118778400).

67473720 is an abundant number, since it is smaller than the sum of its proper divisors (170083080).

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

67473720 is a wasteful number, since it uses less digits than its factorization.

67473720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 67473720 is about 8214.2388570092. The cubic root of 67473720 is about 407.1097949673.

The spelling of 67473720 in words is "sixty-seven million, four hundred seventy-three thousand, seven hundred twenty".