675421290 has 48 divisors (see below), whose sum is σ = 1798936776. Its totient is φ = 175718400.

The previous prime is 675421277. The next prime is 675421297. The reversal of 675421290 is 92124576.

It can be written as a sum of positive squares in 4 ways, for example, as 461003841 + 214417449 = 21471^2 + 14643^2 .

It is not an unprimeable number, because it can be changed into a prime (675421297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87831 + ... + 95210.

Almost surely, 2^675421290 is an apocalyptic number.

675421290 is an abundant number, since it is smaller than the sum of its proper divisors (1123515486).

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

675421290 is a wasteful number, since it uses less digits than its factorization.

675421290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183095 (or 183092 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 675421290 is about 25988.8685786819. The cubic root of 675421290 is about 877.3877812032.

The spelling of 675421290 in words is "six hundred seventy-five million, four hundred twenty-one thousand, two hundred ninety".