485386440 has 256 divisors, whose sum is σ = 1833891840. Its totient is φ = 99840000.

The previous prime is 485386409. The next prime is 485386469. The reversal of 485386440 is 44683584.

It is a super-2 number, since 2×485386440² = 471199992271747200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 485386392 and 485386401.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1210240 + ... + 1210640.

It is an arithmetic number, because the mean of its divisors is an integer number (7163640).

Almost surely, 2^485386440 is an apocalyptic number.

485386440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 485386440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (916945920).

485386440 is an abundant number, since it is smaller than the sum of its proper divisors (1348505400).

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

485386440 is a wasteful number, since it uses less digits than its factorization.

485386440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The square root of 485386440 is about 22031.4874668053. The cubic root of 485386440 is about 785.8914184189.

The spelling of 485386440 in words is "four hundred eighty-five million, three hundred eighty-six thousand, four hundred forty".