67430381 has 8 divisors (see below), whose sum is σ = 71570304. Its totient is φ = 63309760.

The previous prime is 67430357. The next prime is 67430393. The reversal of 67430381 is 18303476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67430381 is a prime.

It is a super-2 number, since 2×67430381² = 9093712563610322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67430351) 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, 2726 + ... + 11928.

It is an arithmetic number, because the mean of its divisors is an integer number (8946288).

Almost surely, 2^67430381 is an apocalyptic number.

It is an amenable number.

67430381 is a deficient number, since it is larger than the sum of its proper divisors (4139923).

67430381 is a wasteful number, since it uses less digits than its factorization.

67430381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9651.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 67430381 is about 8211.6003921282. The cubic root of 67430381 is about 407.0226128252.

The spelling of 67430381 in words is "sixty-seven million, four hundred thirty thousand, three hundred eighty-one".