485222640 has 80 divisors (see below), whose sum is σ = 1719080448. Its totient is φ = 110907648.

The previous prime is 485222629. The next prime is 485222641. The reversal of 485222640 is 46222584.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485222641) 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 15 ways as a sum of consecutive naturals, for example, 142732 + ... + 146091.

Almost surely, 2^485222640 is an apocalyptic number.

485222640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

485222640 is an abundant number, since it is smaller than the sum of its proper divisors (1233857808).

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

485222640 is a wasteful number, since it uses less digits than its factorization.

485222640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288846 (or 288840 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 485222640 is about 22027.7697463906. The cubic root of 485222640 is about 785.8030053615.

The spelling of 485222640 in words is "four hundred eighty-five million, two hundred twenty-two thousand, six hundred forty".