486221640 has 64 divisors (see below), whose sum is σ = 1492603200. Its totient is φ = 126642432.

The previous prime is 486221599. The next prime is 486221657. The reversal of 486221640 is 46122684.

It is a super-2 number, since 2×486221640² = 472822966408579200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41955 + ... + 52274.

It is an arithmetic number, because the mean of its divisors is an integer number (23321925).

Almost surely, 2^486221640 is an apocalyptic number.

486221640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

486221640 is an abundant number, since it is smaller than the sum of its proper divisors (1006381560).

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

486221640 is a wasteful number, since it uses less digits than its factorization.

486221640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94286 (or 94282 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 486221640 is about 22050.4340093341. The cubic root of 486221640 is about 786.3419188480.

The spelling of 486221640 in words is "four hundred eighty-six million, two hundred twenty-one thousand, six hundred forty".