670426938 has 12 divisors (see below), whose sum is σ = 1452591738. Its totient is φ = 223475640.

The previous prime is 670426927. The next prime is 670426949. The reversal of 670426938 is 839624076.

It is an interprime number because it is at equal distance from previous prime (670426927) and next prime (670426949).

It can be written as a sum of positive squares in only one way, i.e., 665485209 + 4941729 = 25797^2 + 2223^2 .

It is a junction number, because it is equal to n+sod(n) for n = 670426893 and 670426902.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18622953 + ... + 18622988.

Almost surely, 2^670426938 is an apocalyptic number.

670426938 is an abundant number, since it is smaller than the sum of its proper divisors (782164800).

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

670426938 is a wasteful number, since it uses less digits than its factorization.

670426938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37245949 (or 37245946 counting only the distinct ones).

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

The square root of 670426938 is about 25892.6039246732. The cubic root of 670426938 is about 875.2198361376.

The spelling of 670426938 in words is "six hundred seventy million, four hundred twenty-six thousand, nine hundred thirty-eight".