670753428 has 48 divisors (see below), whose sum is σ = 1744384320. Its totient is φ = 199355904.

The previous prime is 670753387. The next prime is 670753451. The reversal of 670753428 is 824357076.

It is a super-2 number, since 2×670753428² = 899820322347502368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 670753428.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 82651 + ... + 90402.

It is an arithmetic number, because the mean of its divisors is an integer number (36341340).

Almost surely, 2^670753428 is an apocalyptic number.

670753428 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

670753428 is an abundant number, since it is smaller than the sum of its proper divisors (1073630892).

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

670753428 is a wasteful number, since it uses less digits than its factorization.

670753428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173096 (or 173094 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 670753428 is about 25898.9078534212. The cubic root of 670753428 is about 875.3618869886.

The spelling of 670753428 in words is "six hundred seventy million, seven hundred fifty-three thousand, four hundred twenty-eight".