485430640 has 40 divisors (see below), whose sum is σ = 1177701408. Its totient is φ = 185729280.

The previous prime is 485430607. The next prime is 485430661. The reversal of 485430640 is 46034584.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 485430596 and 485430605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130071 + ... + 133750.

Almost surely, 2^485430640 is an apocalyptic number.

485430640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

485430640 is an abundant number, since it is smaller than the sum of its proper divisors (692270768).

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

485430640 is a wasteful number, since it uses less digits than its factorization.

485430640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263857 (or 263851 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 485430640 is about 22032.4905537254. The cubic root of 485430640 is about 785.9152725026.

The spelling of 485430640 in words is "four hundred eighty-five million, four hundred thirty thousand, six hundred forty".