1668425430 has 64 divisors (see below), whose sum is σ = 4581089280. Its totient is φ = 380951424.

The previous prime is 1668425401. The next prime is 1668425467. The reversal of 1668425430 is 345248661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224616 + ... + 231924.

It is an arithmetic number, because the mean of its divisors is an integer number (71579520).

Almost surely, 2^1668425430 is an apocalyptic number.

1668425430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1668425430 is an abundant number, since it is smaller than the sum of its proper divisors (2912663850).

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

1668425430 is a wasteful number, since it uses less digits than its factorization.

1668425430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8413.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 1668425430 is about 40846.3637304473. The cubic root of 1668425430 is about 1186.0480037862.

The spelling of 1668425430 in words is "one billion, six hundred sixty-eight million, four hundred twenty-five thousand, four hundred thirty".