67423740 has 24 divisors (see below), whose sum is σ = 188786640. Its totient is φ = 17979648.

The previous prime is 67423691. The next prime is 67423781. The reversal of 67423740 is 4732476.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561805 + ... + 561924.

It is an arithmetic number, because the mean of its divisors is an integer number (7866110).

Almost surely, 2^67423740 is an apocalyptic number.

67423740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67423740 is an abundant number, since it is smaller than the sum of its proper divisors (121362900).

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

67423740 is a wasteful number, since it uses less digits than its factorization.

67423740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123741 (or 1123739 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 67423740 is about 8211.1960151978. The cubic root of 67423740 is about 407.0092502732.

The spelling of 67423740 in words is "sixty-seven million, four hundred twenty-three thousand, seven hundred forty".