671200450 has 12 divisors (see below), whose sum is σ = 1248432930. Its totient is φ = 268480160.

The previous prime is 671200433. The next prime is 671200483. The reversal of 671200450 is 54002176.

It can be written as a sum of positive squares in 3 ways, for example, as 317873241 + 353327209 = 17829^2 + 18797^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 6711955 + ... + 6712054.

Almost surely, 2^671200450 is an apocalyptic number.

671200450 is a deficient number, since it is larger than the sum of its proper divisors (577232480).

671200450 is a wasteful number, since it uses less digits than its factorization.

671200450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13424021 (or 13424016 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 671200450 is about 25907.5365482710. The cubic root of 671200450 is about 875.5563047428.

The spelling of 671200450 in words is "six hundred seventy-one million, two hundred thousand, four hundred fifty".