934421638 has 8 divisors (see below), whose sum is σ = 1419374880. Its totient is φ = 461296680.

The previous prime is 934421573. The next prime is 934421669. The reversal of 934421638 is 836124439.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 934421638.

It is a congruent number.

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, 2956873 + ... + 2957188.

It is an arithmetic number, because the mean of its divisors is an integer number (177421860).

Almost surely, 2^934421638 is an apocalyptic number.

934421638 is a deficient number, since it is larger than the sum of its proper divisors (484953242).

934421638 is a wasteful number, since it uses less digits than its factorization.

934421638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5914142.

The product of its digits is 124416, while the sum is 40.

The square root of 934421638 is about 30568.3110099331. The cubic root of 934421638 is about 977.6445018942.

The spelling of 934421638 in words is "nine hundred thirty-four million, four hundred twenty-one thousand, six hundred thirty-eight".