486136840 has 96 divisors (see below), whose sum is σ = 1286008920. Its totient is φ = 164892672.

The previous prime is 486136837. The next prime is 486136843. The reversal of 486136840 is 48631684.

It is an interprime number because it is at equal distance from previous prime (486136837) and next prime (486136843).

It can be written as a sum of positive squares in 4 ways, for example, as 364122724 + 122014116 = 19082^2 + 11046^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 486136793 and 486136802.

It is not an unprimeable number, because it can be changed into a prime (486136843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188842 + ... + 191398.

Almost surely, 2^486136840 is an apocalyptic number.

486136840 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 486136840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643004460).

486136840 is an abundant number, since it is smaller than the sum of its proper divisors (799872080).

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

486136840 is a wasteful number, since it uses less digits than its factorization.

486136840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679 (or 2668 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 486136840 is about 22048.5110608404. The cubic root of 486136840 is about 786.2962019251.

The spelling of 486136840 in words is "four hundred eighty-six million, one hundred thirty-six thousand, eight hundred forty".