639417348 has 48 divisors (see below), whose sum is σ = 1660120000. Its totient is φ = 212834304.

The previous prime is 639417347. The next prime is 639417403. The reversal of 639417348 is 843714936.

639417348 is a `hidden beast` number, since 639 + 4 + 1 + 7 + 3 + 4 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (639417347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79203 + ... + 86901.

Almost surely, 2^639417348 is an apocalyptic number.

It is an amenable number.

639417348 is an abundant number, since it is smaller than the sum of its proper divisors (1020702652).

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

639417348 is a wasteful number, since it uses less digits than its factorization.

639417348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8481 (or 8473 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 639417348 is about 25286.7029879342. The cubic root of 639417348 is about 861.5122787610.

It can be divided in two parts, 63941 and 7348, that added together give a square (71289 = 267²).

The spelling of 639417348 in words is "six hundred thirty-nine million, four hundred seventeen thousand, three hundred forty-eight".