67431072 has 24 divisors (see below), whose sum is σ = 177006816. Its totient is φ = 22476992.

The previous prime is 67431059. The next prime is 67431083. The reversal of 67431072 is 27013476.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351108 + ... + 351299.

It is an arithmetic number, because the mean of its divisors is an integer number (7375284).

Almost surely, 2^67431072 is an apocalyptic number.

It is an amenable number.

67431072 is an abundant number, since it is smaller than the sum of its proper divisors (109575744).

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

67431072 is a wasteful number, since it uses less digits than its factorization.

67431072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702420 (or 702412 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 67431072 is about 8211.6424666445. The cubic root of 67431072 is about 407.0240031563.

The spelling of 67431072 in words is "sixty-seven million, four hundred thirty-one thousand, seventy-two".