67630438 has 8 divisors (see below), whose sum is σ = 103359888. Its totient is φ = 33177144.

The previous prime is 67630427. The next prime is 67630439. The reversal of 67630438 is 83403676.

It is a happy number.

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

It is a super-2 number, since 2×67630438² = 9147752288143688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67630397 and 67630406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67630439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318906 + ... + 319117.

It is an arithmetic number, because the mean of its divisors is an integer number (12919986).

Almost surely, 2^67630438 is an apocalyptic number.

67630438 is a deficient number, since it is larger than the sum of its proper divisors (35729450).

67630438 is a wasteful number, since it uses less digits than its factorization.

67630438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638078.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 67630438 is about 8223.7727351867. The cubic root of 67630438 is about 407.4247427736.

The spelling of 67630438 in words is "sixty-seven million, six hundred thirty thousand, four hundred thirty-eight".