680452442 has 8 divisors (see below), whose sum is σ = 1023250836. Its totient is φ = 339368832.

The previous prime is 680452429. The next prime is 680452477. The reversal of 680452442 is 244254086.

It can be written as a sum of positive squares in 2 ways, for example, as 667137241 + 13315201 = 25829^2 + 3649^2 .

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

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, 427703 + ... + 429290.

Almost surely, 2^680452442 is an apocalyptic number.

680452442 is a deficient number, since it is larger than the sum of its proper divisors (342798394).

680452442 is a wasteful number, since it uses less digits than its factorization.

680452442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857392.

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 680452442 is about 26085.4833576072. The cubic root of 680452442 is about 879.5609216251.

The spelling of 680452442 in words is "six hundred eighty million, four hundred fifty-two thousand, four hundred forty-two".