670402450 has 24 divisors (see below), whose sum is σ = 1248918948. Its totient is φ = 267737280.

The previous prime is 670402433. The next prime is 670402451. The reversal of 670402450 is 54204076.

It can be written as a sum of positive squares in 6 ways, for example, as 212314041 + 458088409 = 14571^2 + 21403^2 .

It is not an unprimeable number, because it can be changed into a prime (670402451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22384 + ... + 42916.

Almost surely, 2^670402450 is an apocalyptic number.

670402450 is a deficient number, since it is larger than the sum of its proper divisors (578516498).

670402450 is a wasteful number, since it uses less digits than its factorization.

670402450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21198 (or 21193 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 670402450 is about 25892.1310440064. The cubic root of 670402450 is about 875.2091799209.

The spelling of 670402450 in words is "six hundred seventy million, four hundred two thousand, four hundred fifty".